Carhartt CMF6366 6-Inch Rugged Flex Composite Toe Work Boot

carhartt cmf6366 6-inch rugged flex composite toe work — what the listing actually specifies

Carhartt CMF6366 Composite Toe Work Boot — Lightweight Metal-Free Leather Boot

A safety toe is impact and compression protection, not electrical isolation. ASTM F2413 treats them as separate ratings: only a boot carrying the EH mark is tested for secondary protection against open electrical circuits, and that protection is voided by wet soles, worn outsoles or embedded metal. Work on or near energised parts is controlled by a zero-energy state and the NFPA 70E arc-flash program first; footwear is the last layer, never the plan.

The Carhartt CMF6366 composite toe work boot is Carhartt's workhorse metal-free leather boot: an oil-tanned full-grain upper over a lightweight non-metallic composite toe that meets ASTM F2413. It is the pick for tradespeople who want a lighter, airport-friendly cap and a leather boot that breaks in fast and lasts.

Features · Specs · Fit & Sizing · Comparison · FAQ

The Carhartt CMF6366 is a 6-inch oil-tanned leather work boot with a non-metallic ASTM F2413 composite safety toe and a Rugged Flex outsole, built as a lightweight everyday trades boot.

Key features

• Non-metallic composite safety toe meets ASTM F2413 impact and compression at a lighter weight than steel
• Oil-tanned full-grain leather upper resists scuffs and conditions well over time
• Carhartt Rugged Flex outsole flexes with the foot to cut fatigue
• Cement construction keeps overall weight down for all-day wear
• Padded collar and tongue for comfort on lace-up
• Roomy composite toe box that does not conduct cold like a steel cap

Specifications

Where this boot fits

The CMF6366 fits general trades, carpentry, and warehouse work where you want a light, non-conductive toe and a leather boot rather than a synthetic sneaker. It is not waterproof, so keep it to dry sites or seal it with items from our boot care and waterproofing collection. Pair it with a supportive insole from our work boot insoles range and durable work socks for long shifts.

Fit, sizing, and metal-free advantage

The CMF6366 runs true to size for most wearers, though the composite toe box is slightly narrower than the Timberland Boondock; order a half size up if you have a wide forefoot. It sits in our composite toe boots range as the value leather pick, next to the waterproof Timberland PRO Boondock and the CarbonMAX Wolverine Overpass. See how metal-free stacks up in our steel toe vs composite toe guide.

Every metal-free boot on this page skips the steel cap, so it will not conduct cold into the toe box and it clears metal detectors at airports, courthouses, and secure facilities. If you are choosing between materials, our steel toe vs composite toe comparison and our how to choose safety boots guide walk through weight, conductivity, and compliance so you order the right cap the first time.

How it compares to its siblings

• Choose this Carhartt model when you want a lightweight leather composite boot for dry-site general trades at strong value.
• Consider the Timberland PRO Boondock (Timberland PRO Boondock) when you want maximum rugged toughness and lug grip for demolition and rough terrain.
• Consider the Wolverine Overpass (Wolverine Overpass) when you want athletic lace-up flex and ankle support on wet ground.

Browse the full composite toe boots range or step back to the master safety footwear collection to compare against steel toe boots, waterproof work boots, and electrical hazard boots. For metal-free picks ranked head to head, read the best composite toe work boots guide, and if you are still deciding whether you need a safety toe at all, see when do you need safety toe boots.

Ready to order?

Order your size above. For the hands-on breakdown see the Carhartt CMF6366 composite toe review, and to compare every metal-free option read the best composite toe work boots guide. You can also check the current price on Amazon — as an Amazon Associate, WC Safety earns from qualifying purchases.

What separates the models in this category is set out in best boot care products, best electrical hazard work boots, best insulated winter work boots.

Directly comparable options are grouped in ariat work boots, carhartt work boots, footwear accessories.

Written by Steven Eaton, WC Safety editor. WC Safety is an independent PPE review site, holds no inventory and sells nothing directly; Amazon links are affiliate links that earn a commission at no cost to you and never affect the assessment. This page is not medical, legal or regulatory advice.