{"product_id":"carolina-mens-usa-made-6-broad-toe-metguard-work-boots-briar-508","title":"Carolina Men's INT Lo USA Made 6\" External Metguard Work Boot - Briar - 508","description":"\u003cp\u003eUnion-made in Carolina's Martinsburg, Pennsylvania factory, the 508 is a 6\" broad-toe steel-toe boot with a foam-lined external metatarsal guard, Kevlar® welt stitching, and a Vibram® Alpha heat-resisting outsole — the lower-cut sibling of the 505, built for foundry and welding work.\u003c\/p\u003e\n\u003ch2\u003eKey Features of the Carolina 508\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel Safety Toe, Broad Toe Last\u003c\/strong\u003e — Meets ASTM F2413 I-75\/C-75 for impact and compression, with a generous toe box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Plastic-Dense Foam-Lined External Met Guard\u003c\/strong\u003e — Metatarsal protection meeting ASTM F2413 Class Mt75.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBriar Pitstop Leather Upper\u003c\/strong\u003e — Rugged full-grain leather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibram® Alpha Heat-Resisting Outsole\u003c\/strong\u003e — Oil- and heat-resisting, with heel grooves that disperse fluids and raised ladder grips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKevlar® Welt Stitching\u003c\/strong\u003e — Kevlar® thread resists flame and heat where ordinary thread burns through.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDRi-LEX® Lining\u003c\/strong\u003e — Soft nylon lining with strong moisture-wicking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable DRYZ® Pillow Cushion™ Footbed \u0026amp; Radiantex® Insole Board\u003c\/strong\u003e — Memory-foam comfort over a supportive board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Hazard Rated\u003c\/strong\u003e — Tested to withstand up to 18,000 volts at 60Hz for one minute without leakage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel Shank \u0026amp; Welt Construction\u003c\/strong\u003e — Stable and fully resoleable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion-Made in the USA with Global Parts\u003c\/strong\u003e — Built by UFCW Local 1776 in Martinsburg, PA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuilt for Heat\u003c\/h3\u003e\n\u003cp\u003eOrdinary welt thread burns through long before the sole wears out. The 508 stitches its welt with Kevlar®, and the Vibram® Alpha outsole is rated to hold its shape against surfaces up to 500°F. Heel grooves disperse fluids and raised ladder grips hold on rungs — details aimed squarely at foundry and industrial floors.\u003c\/p\u003e\n\u003ch3\u003eMt75 Protection in a Lower Cut\u003c\/h3\u003e\n\u003cp\u003eThe external met guard shields the metatarsal bones across the instep to ASTM Mt75, the same impact energy an I-75 toe absorbs. The 6\" shaft trades the 505's ankle coverage for easier movement and a lighter boot.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the 508?\u003c\/h2\u003e\n\u003cp\u003eSteel-toe and Mt75 metatarsal protection with real heat resistance, on a resoleable American-made welt — in a lower-cut, broad-toe last that fits wide feet.\u003c\/p\u003e\n\u003ch3\u003eSimilar Styles to Consider\u003c\/h3\u003e\n\u003cp\u003eWant more ankle coverage? The \u003ca href=\"https:\/\/uverlookboots.com\/products\/carolina-mens-usa-made-8-broad-toe-metguard-work-boots-briar-505\"\u003e505\u003c\/a\u003e is the 8\" version of this boot. Browse the full \u003ca href=\"https:\/\/uverlookboots.com\/collections\/carolina\"\u003eCarolina collection\u003c\/a\u003e at Overlook Boots.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/carolina\"\u003eCarolina Boots\u003c\/a\u003e, \u003ca href=\"\/collections\/met-guard-boots\"\u003eMet Guard Boots\u003c\/a\u003e, \u003ca href=\"\/collections\/american-built\"\u003eAmerican Made Boots\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eThe model is called “INT Lo” — is the met guard internal?\u003c\/h3\u003e\n\u003cp\u003eDespite the name, the 508's met guard is a heavy plastic-dense foam-lined \u003cem\u003eexternal\u003c\/em\u003e guard, worn on the outside of the boot over the instep. Carolina's model naming is a legacy quirk; the boot is also sold as the Foundry. If you specifically need an internal guard, this isn't it.\u003c\/p\u003e\n\u003ch3\u003eWhat does “heat resistant” actually mean here?\u003c\/h3\u003e\n\u003cp\u003eCarolina rates the Vibram® Alpha outsole to withstand contact with surfaces up to 500°F without losing shape, and the Kevlar® welt thread resists flame and heat. It's built so that brief contact with hot metal or slag doesn't melt the sole off the boot — not a firefighting boot.\u003c\/p\u003e\n\u003ch3\u003eDo I actually need a met guard?\u003c\/h3\u003e\n\u003cp\u003eIt depends on what's above your feet. Met guards are specified for foundries, welding, heavy manufacturing, and material handling, and your site's hazard assessment sets the requirement. A met guard cannot be added to a boot afterward — it's rated as part of the finished footwear or not at all.\u003c\/p\u003e\n\u003ch3\u003eCan it be resoled?\u003c\/h3\u003e\n\u003cp\u003eYes. Welt construction stitches the outsole to the upper rather than bonding it, so the Vibram® sole can be replaced when it wears through.\u003c\/p\u003e\n\u003ch3\u003eIs it waterproof or insulated?\u003c\/h3\u003e\n\u003cp\u003eThe 508 is an uninsulated boot whose DRi-LEX® lining wicks moisture from the foot, which keeps it comfortable near heat. If you need a waterproof membrane or winter warmth, Carolina builds both.\u003c\/p\u003e\n\u003ch3\u003eHow does the 508 fit?\u003c\/h3\u003e\n\u003cp\u003eIt's built on Carolina's broad toe last, which gives the toes extra room. It fits true to size — order the size you wear in athletic shoes — and comes in Medium, Wide, and Extra Wide, in sizes 4 through 16.\u003c\/p\u003e","brand":"Carolina","offers":[{"title":"4 \/ Medium \/ Brown","offer_id":53229659783441,"sku":"726363154258","price":319.99,"currency_code":"USD","in_stock":true},{"title":"4.5 \/ Medium \/ Brown","offer_id":53221747818769,"sku":"726363154265","price":319.99,"currency_code":"USD","in_stock":true},{"title":"5 \/ Medium \/ Brown","offer_id":53229659816209,"sku":"726363154272","price":319.99,"currency_code":"USD","in_stock":true},{"title":"5.5 \/ Medium \/ Brown","offer_id":53221747884305,"sku":"726363154289","price":319.99,"currency_code":"USD","in_stock":true},{"title":"6 \/ Medium \/ Brown","offer_id":53229659848977,"sku":"726363154296","price":319.99,"currency_code":"USD","in_stock":true},{"title":"6 \/ Wide \/ Brown","offer_id":53229659881745,"sku":"726363154524","price":319.99,"currency_code":"USD","in_stock":true},{"title":"6.5 \/ 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