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Guardian Fall Protection 37101 Series 3 Full Body Harness, Medium/Large
$59.99
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — Guardian Fall Protection 37101 Series 3 Full Body Harness, Medium/Large Editorial assessment by the WC Safety Editorial Team, based on published Guardian Fall Protection ...
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — Guardian Fall Protection 37101 Series 3 Full Body Harness, Medium/Large
Editorial assessment by the WC Safety Editorial Team, based on published Guardian Fall Protection specifications and category fit. We did not laboratory-test this product.
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Guardian Fall Protection 37101 Series 3 Full Body Harness, Medium/Large Overview
The Guardian Fall Protection 37101 Series 3 Full Body Harness in Medium/Large is built for crews who need a dependable full-body harness as the wearable anchor point of their personal fall arrest system. Under fall protection rules in OSHA 1926.502 (construction) and 1910.140 (general industry), a compliant system requires three parts working together: a full-body harness (never a body belt for fall arrest), a shock-absorbing connecting device, and a rated anchorage. This harness covers the first of those three.
The Series 3 platform is Guardian's everyday-duty harness line, and the 37101 is the Medium/Large size within it. It is designed to distribute fall-arrest forces across the shoulders, thighs, and pelvis through its webbing and leg straps, with a dorsal (back) D-ring as the primary attachment for a lanyard or lifeline. Browse the full range of full body harnesses if you need a different size or a positioning configuration.
A harness alone does not stop a fall. To complete the system you connect the dorsal D-ring to a shock-absorbing device from our lanyards selection or a self retracting lifelines unit, then anchor to a point capable of supporting 5,000 lb per worker (or engineered to a 2:1 safety factor under a qualified person). Always calculate fall clearance for the device and anchor height you are using.
Sizing matters for both comfort and safety: a Medium/Large harness must be adjusted so the dorsal D-ring sits centered between the shoulder blades and the leg and chest straps are snug. Confirm your weight and waist measurement fall inside the M/L range before ordering. Like every fall-arrest component, this harness must be inspected before each use and permanently retired after it arrests a fall or shows webbing, stitching, or hardware damage.
What It Is Built For
| Use case | Fit | Buyer guidance |
|---|---|---|
| Construction work at height (roofing, framing, steel) | Strong fit | Series 3 is an everyday-duty full-body harness for OSHA 1926.502 fall arrest; pair with a shock-absorbing lanyard or SRL and a 5,000 lb anchor. |
| General industry maintenance and elevated platforms | Strong fit | Meets the full-body-harness requirement of OSHA 1910.140; connect the dorsal D-ring to a rated connecting device. |
| Worker in the Medium/Large weight and waist range | Good fit | The 37101 is the M/L size of Series 3; verify your measurements against Guardian's M/L range so the dorsal D-ring centers between the shoulder blades. |
| Work positioning or rebar climbing requiring side/front D-rings | Check configuration | Confirm this 37101 model's D-ring layout supports your task; a dedicated positioning harness from our full body harnesses range may suit better. |
| Arc-flash or hot-work environments | Not a fit | This is a standard-duty harness with no stated arc-rating; select a purpose-built arc-flash harness instead and never assume a rating not on the spec. |
| Replacing a harness that already arrested a fall | Strong fit | Any harness that arrests a fall must be retired; the 37101 is a direct M/L replacement to keep crews compliant. |
Fall protection is life-safety equipment. A personal fall arrest system must limit free fall and arrest forces under OSHA 1926.502 / 1910.140 and ANSI Z359: use a full-body harness (never a body belt for fall arrest) with a compatible shock-absorbing lanyard or self-retracting lifeline and an anchorage rated 5,000 lb per worker (or engineered to a 2:1 safety factor). Inspect every component before each use, immediately retire anything that has arrested a fall or shows damage, and work to a documented rescue plan. Browse fall protection and full-body harnesses.
Pros & Cons
Pros
- Full-body harness sized Medium/Large for the OSHA-required personal fall arrest system
- Series 3 everyday-duty platform from a recognized fall-protection brand
- Dorsal D-ring positions the back attachment for lanyards and self-retracting lifelines
- Distributes fall-arrest forces across shoulders, thighs, and pelvis
- Direct M/L size choice within a matched Series 3 size range (X-Small/Small and XL/2XL siblings available)
Cons
- Harness only - a shock-absorbing lanyard or SRL and a 5,000 lb anchor are sold separately
- No arc-flash or specialty rating; not for hot-work environments
- Must be retired permanently after arresting a single fall
- Medium/Large sizing requires confirming your weight and waist range before ordering
How It Compares
All three sizes below are the same Guardian Series 3 full-body harness platform from our full body harnesses collection - the only difference is the fit range. Choose by your weight and waist measurement, then complete the system with a connecting device.
| Model | Size | Best for |
|---|---|---|
| Guardian 37100 Series 3 | X-Small/Small | Smaller-frame workers needing a snug dorsal D-ring fit |
| Guardian 37101 Series 3 | Medium/Large | The most common range; mid-size construction and general-industry crews |
| Guardian 37102 Series 3 | X-Large/2X-Large | Larger-frame workers needing extended webbing and leg-strap range |
If the Series 3 sizing does not match, the Guardian 1704 Velocity Economy harness is an alternate budget line; compare both within fall protection before buying.
Specifications
| Brand | Guardian Fall Protection |
| Model | 37101 |
| Product Line | Series 3 |
| Type | Full Body Harness |
| Size | Medium/Large |
| Primary Attachment | Dorsal (back) D-ring |
| System Role | Harness component of a personal fall arrest system (PFAS) |
| Applicable Standards | OSHA 1926.502 / 1910.140; ANSI Z359 |
| Retirement Rule | Retire after any fall arrest or visible damage |
Related Resources
fall protection full body harnesses lanyards self retracting lifelines
Frequently Asked Questions
Is the Guardian 37101 Series 3 a complete fall protection system?
No. The 37101 is the full-body harness component only. OSHA 1926.502 requires a complete personal fall arrest system: this harness, a shock-absorbing connecting device from our lanyards or self retracting lifelines, and an anchorage rated for 5,000 lb per worker.
What size worker does the 37101 fit?
The 37101 is the Medium/Large size in Guardian's Series 3 line. Confirm your weight and waist measurement against Guardian's published M/L range before ordering. If you fall outside it, the 37100 (X-Small/Small) and 37102 (XL/2XL) cover the other ranges in our full body harnesses collection.
Does this harness include a lanyard?
No. The harness ships on its own. You add a shock-absorbing lanyard or a self-retracting lifeline separately and connect it to the dorsal D-ring. Browse compatible options in our lanyards and self retracting lifelines collections.
Can I use a body belt instead of this harness for fall arrest?
No. OSHA and ANSI Z359 prohibit body belts for fall arrest - they are permitted only for positioning or restraint. A full-body harness like the 37101 is required because it spreads arrest forces across the body instead of the waist.
Where does the lanyard or lifeline attach on the 37101?
The primary fall-arrest connection is the dorsal (back) D-ring, centered between the shoulder blades. Connect your shock-absorbing lanyard or SRL there. Confirm the specific D-ring layout of this model for any positioning or front-attachment needs.
What kind of anchor do I need with this harness?
Your anchorage must support 5,000 lb per attached worker, or be engineered by a qualified person to maintain a safety factor of at least two. The harness and connecting device are only as safe as the anchor point you tie off to.
Does the 37101 meet OSHA and ANSI requirements?
The 37101 is designed as the full-body-harness element of a system that satisfies OSHA 1926.502, 1910.140, and ANSI Z359. Compliance also depends on using a rated connecting device and anchorage, plus correct fit and pre-use inspection. Always verify the current spec sheet for stated conformance.
Do I have to retire the harness after a fall?
Yes. Any harness that arrests a fall must be permanently removed from service, even if it looks undamaged. The same applies to webbing cuts, frayed stitching, or deformed hardware found during inspection.
How often should I inspect the 37101?
Inspect it before every use and have a competent person perform documented inspections on your employer's schedule. Check webbing, stitching, D-ring, and buckles. Damaged harnesses must be retired, not repaired.
What is the difference between the 37101, 37100, and 37102?
They are the same Series 3 full-body harness in different sizes: 37100 is X-Small/Small, 37101 is Medium/Large, and 37102 is X-Large/2X-Large. Pick the model that matches your fit range from our full body harnesses collection.
Can I use this harness for arc-flash or hot work?
Only if the spec sheet states an arc-flash rating - this standard Series 3 model carries no such claim, so do not assume one. For energized work, choose a purpose-built arc-flash harness within our fall protection range.
How do I calculate fall clearance with this harness?
Fall clearance depends on your connecting device (lanyard length plus deceleration distance, or SRL arrest distance), your dorsal D-ring height, and a safety margin. Calculate it for the specific lanyard or self retracting lifelines unit you pair with the 37101 before any tie-off.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from Guardian Fall Protection published data. Compare the range in full-body harnesses.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Match the product to your specific hazard and follow your site PPE program.
Brand / Vendor
Guardian Fall Protection
Model / SKU
37101
Product Type
Full Body Harnesses
Price
$59.99 (Amazon)
Rating
5.0 / 5 — 3 reviews
Availability
Check current availability on Amazon
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Verified Buyer Reviews
Customer Reviews
★★★★☆4.5 / 5· 23 ratings on Amazon
★★★★★
Just what I needed
I had a bunch of roof work that needed to be done, and I was deathly scared of getting on the roof. I purchased some roof anchors, some rope/lanyard and this harness. And all my paranoia and fear of being on the roof disappeared.I replaced shingles, fixed the roof, repaired the gutters, tuck-pointed my chimney and painted my vent stack. I literally saved $1000s doing this myself. I couldn't have done it without the security of this harness.
Verified Purchaser · May 23, 20 · ✓ Amazon Verified Purchase
★★★★★
Comfortable!!!
Comfortable enough to wear for a while without it being a pain. Adjustments are easy to figure out and it feels really well built. When it comes to safety gear I don’t mess around and this one feels legit
Verified Purchaser · March 14, · ✓ Amazon Verified Purchase
★★★★★
Great quality and value
Great quality, straps even fit my legs with my insulated overalls on. Great price for this, very comfortable. The leg straps are a bit noisy but they look like some silence tape would shut them right up
Verified Purchaser · November 1 · ✓ Amazon Verified Purchase
Showing 3 of 23 Amazon reviews.
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