Co-designed with a team of veteran miners, the Longwall™ features a waterproof, breathable GORE-TEX® lining and a triple-stitched, 2-2.2mm waterproof leather. The non-metallic toe, Flex-Shield II ™ midsole, and a floating MetFlex™ metatarsal guard meet or exceed ASTM F2413-05 M I/75 C/75 EH PR Mt. The protective rubber heel and toe are abrasion and chemical resistant. A 360° reflective paneling enhances visibility and the Vibram® outsole provides lightweight comfort as well as superb shock absorption. 200 G. ThinsulateTM provides insulating protection from heat and cold. Fiberglass shank.