Non-metallic composite toe meets ASTM F2413-11 I/75 C/75 EH Waterproof full-grain leather upper with Danner Dry barrier Vibram SPE midsole offers comfort and energy return Slip-resistant Vibram Stronghold outsole with 90º heel Electrical hazard protection for workplace safety For safety without compromise, the Danner Men’s Stronghold 6" NMT features a non-metallic composite toe, waterproof leather, and a Vibram Stronghold outsole for secure footing. The Vibram SPE midsole and OrthoLite cushioning keep you comfortable through the longest shifts.