16'' Boots with vibram outsole for durability and XpressCool lining that keeps feet cool and dry in warm weather. Features 4 mm CR flex foam bootie with 4 way stretch nylon, steel toe for impact protection, steel shank for additional arch support, and etc sock liner to reduce friction and heat buildup. Upper is triple reinforced in the toe area and quadruple reinforced in the heel area. 100% Waterproof, lightweight and flexible. Meets ASTM F2413-11 M I/75 C/75 EH. Available sizes: Men's 5 / Women's 6, Men's 6 / Women's 7, Men's 7 / Women's 8, Men's 8 / Women's 9, Men's 9 / Women's 10, Men's 10 / Women's 11, Men's 11 / Women's 12, Men's 12 / Women's 13, Men's 13 / Women's 14, Men's 14 / Women's 15. Material: Rubber, Neoprene.