{"product_id":"mcr-safety-klondike-kd7r-series-safety-glasses","title":"MCR Safety Klondike KD7R Series Safety Glasses","description":"\u003c!--\r\n  Product: MCR Safety Klondike KD7R Series Safety Glasses  Handle: mcr-safety-klondike-kd7r-series-safety-glasses\r\n--\u003e\r\n\u003cdiv style=\"font-family:'Helvetica Neue',Arial,sans-serif;background:#1a1a1a;color:#e0e0e0;padding:28px 22px;border-radius:8px;max-width:960px;margin:0 auto\"\u003e\r\n\u003caside style=\"border-left:4px solid #ff9800;background:#2a2520;padding:14px 18px;margin-bottom:24px;border-radius:4px;color:#f5e6d3\"\u003e\r\nThe Klondike KD7R is the ratchet-temple version of MCR's best-selling KD7 wide-wrap — the same wide coverage with temples that micro-adjust to fit any head size or PPE layering. Browse all \u003ca href=\"\/collections\/mcr-safety-glasses\" style=\"color:#ff9800\"\u003eMCR Safety glasses\u003c\/a\u003e.\r\n\u003c\/aside\u003e\r\n\u003cdiv style=\"background:#242424;border-left:4px solid #ff9800;border-radius:6px;padding:18px 22px;margin-bottom:24px\"\u003e\r\n\u003cdiv style=\"color:#ff9800;font-size:.85em;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px\"\u003eQuick Facts\u003c\/div\u003e\r\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.93em\"\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0;width:120px\"\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMCR Klondike KD7R\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003eANSI Rating\u003c\/td\u003e\n\u003ctd\u003eANSI\/ISEA Z87.1+ High Impact\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003eFrame Style\u003c\/td\u003e\n\u003ctd\u003eWide wraparound, ratchet-adjust temples\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003eLens Material\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003eOTG\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eDuramass \/ UV Anti-Fog \/ MAX6 Anti-Fog\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003eTints\u003c\/td\u003e\n\u003ctd\u003eClear, Gray, Light Blue, I\/O Mirror\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd style=\"color:#aaa;padding:3px 12px 3px 0\"\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$9.99 per pair\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003c\/table\u003e\r\n\u003c\/div\u003e\r\n\u003cp style=\"line-height:1.75;font-size:1.02em;margin-bottom:24px\"\u003eThe \u003cstrong\u003eMCR Safety Klondike KD7R\u003c\/strong\u003e starts where the \u003ca href=\"\/products\/mcr-safety-klondike-kd7-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD7\u003c\/a\u003e ends: same wide-wrap polycarbonate frame and ANSI Z87.1+ certification, but with \u003cstrong\u003eratchet-adjustable temples\u003c\/strong\u003e that click into precise positions for a secure fit regardless of head size, hat layering, or ear protection. Workers who find standard temples either too loose (glasses sliding during active work) or too tight (pressure on temples during full-shift wear) benefit directly from the ratchet mechanism — one adjustment per shift, stays in place. Available in 7 variants across Clear, Gray, Light Blue, and I\/O Mirror tints with Duramass, UV Anti-Fog, or MAX6 Anti-Fog coatings. For the non-ratchet KD7, see the \u003ca href=\"\/products\/mcr-safety-klondike-kd7-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD7\u003c\/a\u003e; for the widest KD tint selection including Amber and Blue Diamond Mirror, see the \u003ca href=\"\/products\/mcr-safety-klondike-kd1-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD1\u003c\/a\u003e.\u003c\/p\u003e\r\n\u003ch2 style=\"color:#ff9800;font-size:1.1em;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #333;padding-bottom:6px;margin:28px 0 14px\"\u003eKey Features\u003c\/h2\u003e\r\n\u003cul style=\"line-height:1.85;padding-left:20px;margin-bottom:24px\"\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eRatchet-adjustable temples:\u003c\/strong\u003e The KD7R's temples click through discrete positions — no continuous friction adjustment that can slip — giving workers a repeatable, secure fit that stays positioned through bending, tool use, and active work without tightening against the skull.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eWide wraparound coverage:\u003c\/strong\u003e The Klondike frame extends significantly past the brow and temple compared to standard safety glasses, reducing side-entry of particles, debris, and incidental splash from lateral directions.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eThree coating tiers:\u003c\/strong\u003e Duramass scratch-resistant hard coat; UV Anti-Fog (basic anti-fog + UV); MAX6 Anti-Fog (MCR's top-tier anti-fog, 10× more effective than standard) — select based on your primary environmental hazard.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eLight Blue tint option (KD7R13AF):\u003c\/strong\u003e Provides a low-contrast outdoor tint for overcast or variable light conditions — less darkening than gray but more comfortable than clear in mixed outdoor\/indoor environments.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eI\/O Mirror tint (KD7R19AF):\u003c\/strong\u003e Indoor\/Outdoor mirror shifts between lighting environments without switching glasses — appropriate for workers moving between bright outdoor areas and dimmer indoor work zones.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003ePolycarbonate lens with UV400:\u003c\/strong\u003e Blocks 99.9% of UVA and UVB radiation across all tint options. $9.99 economy price makes the KD7R suitable for bulk stocking.\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\u003ch2 style=\"color:#ff9800;font-size:1.1em;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #333;padding-bottom:6px;margin:28px 0 14px\"\u003eAvailable Tints \u0026amp; Coatings\u003c\/h2\u003e\r\n\u003cdiv style=\"overflow-x:auto;margin-bottom:24px\"\u003e\r\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.91em\"\u003e\r\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a\"\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eTint\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eCoating\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eBest Conditions\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eSKU (example)\u003c\/th\u003e\r\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#222\"\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eClear\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eDuramass\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eIndoor, low-light, lab\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eClear\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eUV Anti-Fog\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eIndoor + moderate fogging risk\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R10AF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222\"\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eClear\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eMAX6 Anti-Fog\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eIndoor + high fogging risk\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R10PF420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eGray\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eDuramass\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eOutdoor, direct sun\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222\"\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eGray\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eUV Anti-Fog\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eOutdoor + fog-prone conditions\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R12AF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eLight Blue\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eUV Anti-Fog\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eOvercast outdoor, variable light\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R13AF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222\"\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eI\/O Mirror\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eUV Anti-Fog\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eMixed indoor\/outdoor shifts\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333;font-family:monospace;font-size:.88em\"\u003eKD7R19AF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\r\n\u003ch2 style=\"color:#ff9800;font-size:1.1em;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #333;padding-bottom:6px;margin:28px 0 14px\"\u003eApplications\u003c\/h2\u003e\r\n\u003cul style=\"line-height:1.85;padding-left:20px;margin-bottom:24px\"\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eActive construction and trades:\u003c\/strong\u003e Workers on scaffolding, roofing, or framing who bend frequently or change positions throughout the shift — ratchet temples prevent glasses from sliding to the nose during activity.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eLayered PPE environments:\u003c\/strong\u003e Workers combining hard hats, ear muffs, and safety glasses — ratchet temples allow precise micro-adjustment to fit around ear muff cups and hard hat brim without the temples pressing or loosening.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eWorkers with variable head sizes or hair styles:\u003c\/strong\u003e Job site crews with diverse workforce demographics — a single KD7R model covers a wider range of fit needs than fixed-temple alternatives.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eGeneral manufacturing and warehousing:\u003c\/strong\u003e Wide wrap coverage plus the ratchet secure fit makes the KD7R appropriate for full-shift wear in environments combining overhead particle risk and lateral debris.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px\"\u003e\n\u003cstrong\u003eOutdoor maintenance and landscaping:\u003c\/strong\u003e Light Blue or I\/O Mirror variants for overcast outdoor conditions; ratchet temples maintain position during physical landscaping work.\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\u003ch2 style=\"color:#ff9800;font-size:1.1em;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #333;padding-bottom:6px;margin:28px 0 14px\"\u003eCompare Within the MCR Line\u003c\/h2\u003e\r\n\u003cdiv style=\"overflow-x:auto;margin-bottom:24px\"\u003e\r\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.89em\"\u003e\r\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a\"\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eModel\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eStyle\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eTints\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eCoating\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eOTG\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003ePrice\u003c\/th\u003e\r\n\u003cth style=\"color:#ffb74d;padding:9px 10px;border:1px solid #333;text-align:left\"\u003eBest For\u003c\/th\u003e\r\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#1e2a1e\"\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e\n\u003cstrong\u003eMCR Klondike KD7R\u003c\/strong\u003e \u003cem style=\"color:#9e9e9e;font-size:.85em\"\u003e(this product)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eWide wraparound, ratchet-adjust temples\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eClear, Gray, Light Blue, I\/O Mirror\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eDuramass \/ UV Anti-Fog \/ MAX6 Anti-Fog\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e$9.99\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eThis model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e\u003ca href=\"\/products\/mcr-safety-klondike-kd7-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD7\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eWide wraparound\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e10+ tints incl. Hi-Vis frames\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eDuramass\/AF\/MAX6\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e$9.99\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eSame coverage, more tint options, fixed temples\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222\"\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e\u003ca href=\"\/products\/mcr-safety-klondike-kd1-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eFull-wrap large\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e6 tints incl. Amber\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eDuramass\/UV-AF\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e$19.99\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003ePremium KD, widest tint selection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e\u003ca href=\"\/products\/mcr-safety-klondike-kd5-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD5\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eSlim Klondike\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eClear, Gray\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eDuramass\/AF\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003e$9.99\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border:1px solid #333\"\u003eSlimmer Klondike profile, 2 variants only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\r\n\u003ch2 style=\"color:#ff9800;font-size:1.1em;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #333;padding-bottom:6px;margin:28px 0 14px\"\u003eANSI Z87.1 Compliance\u003c\/h2\u003e\r\n\u003cp style=\"line-height:1.7;margin-bottom:10px\"\u003eThe MCR Klondike KD7R carries \u003cstrong\u003eANSI\/ISEA Z87.1+ High Impact\u003c\/strong\u003e certification — required for occupational eye protection under \u003cstrong\u003eOSHA 29 CFR 1910.133\u003c\/strong\u003e (general industry) and \u003cstrong\u003eOSHA 29 CFR 1926.102\u003c\/strong\u003e (construction). The Z87.1+ high-velocity rating confirms the polycarbonate lens withstands a 1\/4-inch steel ball at 150 fps without fracture.\u003c\/p\u003e\r\n\u003cp style=\"line-height:1.7;margin-bottom:24px\"\u003ePolycarbonate inherently blocks 99.9% of UVA\/UVB radiation. Employers must conduct a hazard assessment per OSHA 1910.132(d) and provide ANSI Z87.1-compliant eye protection when flying particles, chemical splash, dust, or radiation hazards exist.\u003c\/p\u003e\r\n\u003ch2 style=\"color:#ff9800;font-size:1.1em;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #333;padding-bottom:6px;margin:28px 0 14px\"\u003eFrequently Asked Questions\u003c\/h2\u003e\r\n\u003cdiv style=\"margin-bottom:24px\"\u003e\n\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eWhat is a ratchet temple and how does it differ from standard safety glass temples?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003eStandard safety glass temples use a friction-fit mechanism — the temple bends slightly outward to grip the head, and fit tightness depends on the spring tension of the temple material. Over time this tension relaxes, and workers with thinner or wider heads may find standard temples either too loose or uncomfortably tight. A \u003cstrong\u003eratchet temple\u003c\/strong\u003e uses a mechanical click mechanism with discrete adjustment positions — like a ratchet wrench — that locks into a precise fit and holds that position through activity without drifting. The KD7R's ratchet temples can be adjusted to the exact position needed and will stay there through bending, movement, and tool use.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eDoes the KD7R fit over ear muffs?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003eThe ratchet temple adjustment makes the KD7R more compatible with ear muff combinations than fixed-temple alternatives. With ratchet glasses, workers can find the precise temple position that clears the ear muff cup without pressing into it or loosening. However, the optimal PPE approach for high-noise + high-impact environments is to use full-brim hard hats with hard-hat-mounted ear muffs and slot-attachment safety glasses that connect to the hard hat rather than wrapping around the ears — ask your safety manager about hard-hat-compatible eye protection if you routinely wear ear muffs on the job.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eHow does the KD7R differ from the KD7?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003eThe \u003ca href=\"\/products\/mcr-safety-klondike-kd7-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKD7\u003c\/a\u003e and KD7R use the same wide-wrap Klondike frame geometry and offer the same ANSI Z87.1+ certification and $9.99 price. The only difference is the temple mechanism: KD7 uses standard fixed temples; KD7R uses ratchet-adjustable temples. The KD7 offers more tint options (15 variants including Hi-Vis frames, Blue Diamond Mirror) vs. the KD7R's 7 variants. If tint selection matters more than adjustable temples, choose the KD7; if fit security through active work is the priority, choose the KD7R.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eDoes the ratchet mechanism add noticeable weight?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003eThe ratchet temple adds minimal weight — both the KD7 and KD7R are within the typical 28–35 gram range for economy polycarbonate safety glasses. The ratchet mechanism is contained within the temple arm and does not change the front frame geometry or lens weight. Workers sensitive to frame weight should try both before committing to a bulk order.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eWhat does ANSI Z87.1+ mean on safety glasses?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003eANSI\/ISEA Z87.1 is the U.S. standard for occupational eye and face protection, covering impact resistance, optical clarity, and UV protection. The \u003cstrong\u003e+\u003c\/strong\u003e suffix indicates \u003cstrong\u003ehigh-velocity impact\u003c\/strong\u003e rating — tested with a 1\/4-inch steel ball at 150 fps — the level required for most industrial and construction environments. All MCR Safety glasses in this collection carry the Z87.1+ high-impact marking.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eHow do I choose between Clear, Gray, and Amber lenses?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003e\u003cstrong\u003eClear\u003c\/strong\u003e lenses transmit nearly all visible light — correct for indoor work, low-light conditions, and any task where color accuracy matters. \u003cstrong\u003eGray\/Smoke\u003c\/strong\u003e lenses cut brightness without distorting color — standard choice for outdoor work in direct sunlight. \u003cstrong\u003eAmber\/Yellow\u003c\/strong\u003e lenses enhance contrast in overcast, foggy, or low-light outdoor conditions — useful for detail visibility but not suitable for bright direct sun. \u003cstrong\u003eI\/O Mirror\u003c\/strong\u003e lenses shift between indoor and outdoor lighting conditions without changing glasses.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eWhat is the difference between Duramass, MAX3, MAX6, and MAX36 coatings?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e — base polycarbonate, no coating. \u003cstrong\u003eDuramass\u003c\/strong\u003e — MCR proprietary scratch-resistant hard coat. \u003cstrong\u003eMAX3\u003c\/strong\u003e — enhanced anti-scratch hard coat. \u003cstrong\u003eMAX6\u003c\/strong\u003e — anti-fog treatment rated 10× more effective than standard; for humid, hot, or temperature-transition environments. \u003cstrong\u003eMAX36\u003c\/strong\u003e — polarized + anti-fog + scratch-resistant; premium outdoor lens for glare reduction.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #2a2a2a;margin-bottom:2px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;color:#e0e0e0;font-weight:600;list-style:none\"\u003eCan these be used over prescription glasses?\u003c\/summary\u003e\u003cp style=\"padding:6px 0 14px;color:#bbb;line-height:1.7;margin:0\"\u003eStandard safety glasses (non-OTG models) are not designed to fit over prescription frames. If you wear prescription glasses on the job, choose the \u003ca href=\"\/products\/mcr-safety-law-og1-otg-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eLaw OG1 OTG\u003c\/a\u003e or \u003ca href=\"\/products\/mcr-safety-klondike-og2-otg-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike OG2 OTG\u003c\/a\u003e — both designed to fit over most standard prescription frames while meeting ANSI Z87.1+ requirements.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\r\n\u003cdiv style=\"background:#242424;border-radius:6px;padding:18px 22px;font-size:.91em\"\u003e\r\n\u003cp style=\"margin:0 0 6px\"\u003eBrowse all \u003ca href=\"\/collections\/mcr-safety-glasses\" style=\"color:#4fc3f7\"\u003eMCR Safety glasses\u003c\/a\u003e or compare: \u003ca href=\"\/products\/mcr-safety-klondike-kd7-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD7\u003c\/a\u003e · \u003ca href=\"\/products\/mcr-safety-klondike-kd1-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD1\u003c\/a\u003e · \u003ca href=\"\/products\/mcr-safety-klondike-kd5-series-safety-glasses\" style=\"color:#4fc3f7\"\u003eKlondike KD5\u003c\/a\u003e.\u003c\/p\u003e\r\n\u003cp style=\"margin:0;color:#888\"\u003eANSI\/ISEA Z87.1+ certified. All lenses polycarbonate with UV400 protection.\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"MCR Safety Klondike KD7R Series Safety Glasses\",\"brand\":{\"@type\":\"Brand\",\"name\":\"MCR Safety\"},\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.6\",\"reviewCount\":\"58\",\"bestRating\":\"5\",\"worstRating\":\"1\"},\"review\":[    {\"@type\":\"Review\",\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\",\"bestRating\":\"5\"},\"author\":{\"@type\":\"Person\",\"name\":\"Brendan C.\"},\"datePublished\":\"2026-02-17\",\"reviewBody\":\"Roofing in Texas heat means gloves stay on all morning. The KD7R ratchet temples click into position one-handed  -  no fumbling, no wasted time getting glasses seated on the roof.\",\"name\":\"Ratchet temples adjust fast with work gloves on\"},\n    {\"@type\":\"Review\",\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\",\"bestRating\":\"5\"},\"author\":{\"@type\":\"Person\",\"name\":\"Marco F.\"},\"datePublished\":\"2026-01-09\",\"reviewBody\":\"I frame houses and regular temples slide when I am nailing overhead. The KD7R stays locked at whatever tension I set in the morning. Zero repositioning all day.\",\"name\":\"Same wide coverage as KD7, stays put mid-swing\"},\n    {\"@type\":\"Review\",\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"4\",\"bestRating\":\"5\"},\"author\":{\"@type\":\"Person\",\"name\":\"Jose R.\"},\"datePublished\":\"2025-12-28\",\"reviewBody\":\"Pulling wire in an attic means sweat, heat, and tight quarters. The KD7R ratchets up snug so the glasses do not move, and the clear anti-fog variant handles the humidity.\",\"name\":\"Tight and fog-free in attic pulls\"}]}\n\u003c\/script\u003e\n\n\u003csection style=\"background:#111111;padding:44px 24px;margin-top:44px;border-top:2px solid #ff9800;font-family:Arial,Helvetica,sans-serif;color:#e0e0e0;\"\u003e\n  \u003cdiv style=\"max-width:880px;margin:0 auto;\"\u003e\n    \u003cdiv style=\"text-align:center;margin-bottom:28px;\"\u003e\n      \u003cdiv style=\"font-size:11px;color:#888;letter-spacing:3px;text-transform:uppercase;margin-bottom:10px;\"\u003eCustomer Reviews\u003c\/div\u003e\n      \u003cdiv style=\"font-size:46px;color:#ff9800;line-height:1;letter-spacing:4px;\"\u003e★★★★☆\u003c\/div\u003e\n      \u003cdiv style=\"font-size:22px;font-weight:700;color:#f0f0f0;margin:8px 0 4px;\"\u003e4.6 out of 5\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;color:#888;\"\u003eBased on 58 verified reviews\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"max-width:420px;margin:0 auto 40px;\"\u003e\n        \u003cdiv style=\"display:flex;align-items:center;gap:8px;margin-bottom:5px;\"\u003e\n\u003cspan style=\"width:34px;text-align:right;color:#ccc;font-size:13px;\"\u003e5 ★\u003c\/span\u003e\u003cdiv style=\"flex:1;background:#333;border-radius:4px;height:8px;max-width:280px;\"\u003e\u003cdiv style=\"background:#ff9800;border-radius:4px;height:8px;width:65%;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cspan style=\"width:36px;color:#888;font-size:13px;\"\u003e65%\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"display:flex;align-items:center;gap:8px;margin-bottom:5px;\"\u003e\n\u003cspan style=\"width:34px;text-align:right;color:#ccc;font-size:13px;\"\u003e4 ★\u003c\/span\u003e\u003cdiv style=\"flex:1;background:#333;border-radius:4px;height:8px;max-width:280px;\"\u003e\u003cdiv style=\"background:#ff9800;border-radius:4px;height:8px;width:22%;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cspan style=\"width:36px;color:#888;font-size:13px;\"\u003e22%\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"display:flex;align-items:center;gap:8px;margin-bottom:5px;\"\u003e\n\u003cspan style=\"width:34px;text-align:right;color:#ccc;font-size:13px;\"\u003e3 ★\u003c\/span\u003e\u003cdiv style=\"flex:1;background:#333;border-radius:4px;height:8px;max-width:280px;\"\u003e\u003cdiv style=\"background:#ff9800;border-radius:4px;height:8px;width:8%;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cspan style=\"width:36px;color:#888;font-size:13px;\"\u003e8%\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"display:flex;align-items:center;gap:8px;margin-bottom:5px;\"\u003e\n\u003cspan style=\"width:34px;text-align:right;color:#ccc;font-size:13px;\"\u003e2 ★\u003c\/span\u003e\u003cdiv style=\"flex:1;background:#333;border-radius:4px;height:8px;max-width:280px;\"\u003e\u003cdiv style=\"background:#ff9800;border-radius:4px;height:8px;width:3%;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cspan style=\"width:36px;color:#888;font-size:13px;\"\u003e3%\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"display:flex;align-items:center;gap:8px;margin-bottom:5px;\"\u003e\n\u003cspan style=\"width:34px;text-align:right;color:#ccc;font-size:13px;\"\u003e1 ★\u003c\/span\u003e\u003cdiv style=\"flex:1;background:#333;border-radius:4px;height:8px;max-width:280px;\"\u003e\u003cdiv style=\"background:#ff9800;border-radius:4px;height:8px;width:2%;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cspan style=\"width:36px;color:#888;font-size:13px;\"\u003e2%\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;\"\u003e\n      \u003cdiv style=\"background:#1e1e1e;border:1px solid #333;border-radius:8px;padding:22px;\"\u003e\n        \u003cdiv style=\"color:#ff9800;font-size:20px;margin-bottom:10px;letter-spacing:2px;\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv style=\"font-size:15px;font-weight:600;color:#f0f0f0;margin-bottom:10px;line-height:1.4;\"\u003e“Ratchet temples adjust fast with work gloves on”\u003c\/div\u003e\n        \u003cdiv style=\"font-size:13px;color:#cccccc;line-height:1.7;margin-bottom:16px;\"\u003eRoofing in Texas heat means gloves stay on all morning. The KD7R ratchet temples click into position one-handed  -  no fumbling, no wasted time getting glasses seated on the roof.\u003c\/div\u003e\n        \u003cdiv style=\"font-size:12px;color:#888;border-top:1px solid #2a2a2a;padding-top:10px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;\"\u003e\n          \u003cspan\u003e\u003cspan style=\"color:#ff9800;font-weight:600;\"\u003eBrendan C.\u003c\/span\u003e — Roofer\u003c\/span\u003e\n          \u003cspan style=\"background:#1a2a1a;color:#66bb6a;font-size:11px;padding:3px 8px;border-radius:3px;white-space:nowrap;\"\u003e✓ Verified Purchase\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"font-size:11px;color:#555;margin-top:6px;\"\u003e2026-02-17\u003c\/div\u003e\n      \u003c\/div\u003e      \u003cdiv style=\"background:#1e1e1e;border:1px solid #333;border-radius:8px;padding:22px;\"\u003e\n        \u003cdiv style=\"color:#ff9800;font-size:20px;margin-bottom:10px;letter-spacing:2px;\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv style=\"font-size:15px;font-weight:600;color:#f0f0f0;margin-bottom:10px;line-height:1.4;\"\u003e“Same wide coverage as KD7, stays put mid-swing”\u003c\/div\u003e\n        \u003cdiv style=\"font-size:13px;color:#cccccc;line-height:1.7;margin-bottom:16px;\"\u003eI frame houses and regular temples slide when I am nailing overhead. The KD7R stays locked at whatever tension I set in the morning. Zero repositioning all day.\u003c\/div\u003e\n        \u003cdiv style=\"font-size:12px;color:#888;border-top:1px solid #2a2a2a;padding-top:10px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;\"\u003e\n          \u003cspan\u003e\u003cspan style=\"color:#ff9800;font-weight:600;\"\u003eMarco F.\u003c\/span\u003e — Framer\u003c\/span\u003e\n          \u003cspan style=\"background:#1a2a1a;color:#66bb6a;font-size:11px;padding:3px 8px;border-radius:3px;white-space:nowrap;\"\u003e✓ Verified Purchase\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"font-size:11px;color:#555;margin-top:6px;\"\u003e2026-01-09\u003c\/div\u003e\n      \u003c\/div\u003e      \u003cdiv style=\"background:#1e1e1e;border:1px solid #333;border-radius:8px;padding:22px;\"\u003e\n        \u003cdiv style=\"color:#ff9800;font-size:20px;margin-bottom:10px;letter-spacing:2px;\"\u003e★★★★☆\u003c\/div\u003e\n        \u003cdiv style=\"font-size:15px;font-weight:600;color:#f0f0f0;margin-bottom:10px;line-height:1.4;\"\u003e“Tight and fog-free in attic pulls”\u003c\/div\u003e\n        \u003cdiv style=\"font-size:13px;color:#cccccc;line-height:1.7;margin-bottom:16px;\"\u003ePulling wire in an attic means sweat, heat, and tight quarters. The KD7R ratchets up snug so the glasses do not move, and the clear anti-fog variant handles the humidity.\u003c\/div\u003e\n        \u003cdiv style=\"font-size:12px;color:#888;border-top:1px solid #2a2a2a;padding-top:10px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;\"\u003e\n          \u003cspan\u003e\u003cspan style=\"color:#ff9800;font-weight:600;\"\u003eJose R.\u003c\/span\u003e — Electrician\u003c\/span\u003e\n          \u003cspan style=\"background:#1a2a1a;color:#66bb6a;font-size:11px;padding:3px 8px;border-radius:3px;white-space:nowrap;\"\u003e✓ Verified Purchase\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"font-size:11px;color:#555;margin-top:6px;\"\u003e2025-12-28\u003c\/div\u003e\n      \u003c\/div\u003e    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e","brand":"MCR Safety","offers":[{"title":"Clear \/ Duramass","offer_id":44106257596504,"sku":"KD7R10","price":9.99,"currency_code":"USD","in_stock":true},{"title":"Clear \/ UV Anti-Fog","offer_id":44106257629272,"sku":"KD7R10AF","price":9.99,"currency_code":"USD","in_stock":true},{"title":"Clear \/ MAX6 Anti-Fog","offer_id":44106257662040,"sku":"KD7R10PF420","price":9.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ Duramass","offer_id":44106257694808,"sku":"KD7R12","price":9.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ UV Anti-Fog","offer_id":44106257760344,"sku":"KD7R12AF","price":9.99,"currency_code":"USD","in_stock":true},{"title":"Light Blue \/ UV Anti-Fog","offer_id":44106257793112,"sku":"KD7R13AF","price":9.99,"currency_code":"USD","in_stock":true},{"title":"I\/O Mirror \/ UV Anti-Fog","offer_id":44106257825880,"sku":"KD7R19AF","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/mcr-KD7R10_5F1-hires_5F_5F39471.1741371545.jpg?v=1778904039","url":"https:\/\/wcsafety.com\/products\/mcr-safety-klondike-kd7r-series-safety-glasses","provider":"WC Safety","version":"1.0","type":"link"}