MCR Safety MU3664KGW-XXXL Mustang HiDex Goatskin Kevlar FR Gauntlet — XXX-Large

The MCR Safety MU3664KGW-XXXL Mustang HiDex is the XXX-Large size of the Mustang flame-resistant leather gauntlet — premium goatskin over a flame-resistant Kevlar liner with a waterproof extended gauntlet cuff. It is built for XXX-Large-handed workers in forestry, utility line work, and industrial operations that need extended wrist and forearm coverage against heat, abrasion, and flame, and the Mustang HiDex line is listed NFPA 2112 compliant.

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Why the MCR Safety MU3664KGW-XXXL fits the largest hands

Premium FR gauntlets usually run out of stock long before XXX-Large, leaving the biggest-handed workers to force a too-small glove that neither seals nor protects. This XXX-Large closes that gap with the full Mustang HiDex build: premium goatskin over a flame-resistant Kevlar liner, with a waterproof extended cuff that guards the wrist and forearm where a driver glove stops short. For forestry, line work, and industrial field crews, it puts NFPA 2112-listed FR protection into a fit that actually works, and a gauntlet that seals at the cuff keeps sparks and debris out of the sleeve rather than funneling them toward the forearm. Fit is a safety feature on a glove this specialized, not a convenience. As welding gloves go, this is the large-fit FR gauntlet, and the best welding gloves guide and leather glove guide cover matching hide and lining to the job.

What the MCR Safety MU3664KGW-XXXL listing documents

From the published specs: a premium goatskin palm; a flame-resistant Kevlar liner; a waterproof extended gauntlet cuff; an XXX-Large fit; the Mustang HiDex line listed NFPA 2112 compliant. These are true fr welding gloves and genuine goatskin gauntlet gloves — the xxx large work gloves option for the largest-handed field workers.

How the MU3664KGW-XXXL compares to other gloves

For the Small-to-XX-Large range of the same gauntlet, the standard MU3664KGW. Among welding gloves, compare the cowhide Tillman 50 gauntlet and Black Stallion cowhide, insulated Caiman deerskin, extra-long Rapicca 16-inch, and the traditional Lincoln K2979. For dedicated cut knits, the A5 MCR 92752 and A6 Ergodyne ProFlex 7061. The cut-resistant gloves guide covers cut ratings.

Choosing the right glove for your hazard

Match the glove to the mix of hazards. For non-FR leather work, the leather work gloves collection and the ANSI cut levels guide help set the cut side; for chemical exposure, a dedicated chemical glove from the chemical-resistant collection instead; and the full hand protection collection spans FR, cut, chemical, and impact options for building a complete kit.

Where it fits by job and crew orders

The XXX-Large MU3664KGW-XXXL suits forestry, electric utility line work, welding, and industrial field operations for the largest-handed workers who need extended-cuff FR protection — compare gauntlets with the welding gloves guide. For crew orders, quantity purchasing runs through a free Amazon Business account — volume pricing, PO numbers at checkout, and tax-exempt eligibility for qualifying organizations, with the walkthrough linked in our footer.