Muck Arctic Sport Safety Toe 5mm CR flex-foam bootie and fleece lining helps to keep feet comfortable in -40° F to 60° F temperatures, 100% waterproof, steel toe, MS-1 molded outsole, etc® sock liner and EVA cushion midsole ASP-STL Arctic Sport Safety Toe5mm CR flex-foam bootie, fleece lining, steel toe, Men's 7-14 Women's 8-13 (unisex) Key Features 5mm CR flex-foam bootie with four way stretch nylon Fleeced lined for added warmth and comfort 100% waterproof, light-weight and flexible Steel toe impact protection 2mm thermal foam underlay added to the instep area for additional warmth EVA molded midsole with contoured footbed MS-1 molded outsole is rugged, aggressive and durable for maximum protection and stability Double reinforcements on the instep, heel and achilles Added toe protection with wrap-up bumper Meets ASTM F2413-11 M I/75 C/75 EH Recommended Industries/Use Agriculture Chemical Construction Forestry Municipal Services Oil and Gas Hazards Abrasion Chemical Impact Splash Thermal Material Neoprene rubber / CR flex-foam bootie Height 16 inch Steel toe Yes Metatarsal Guard No Steel midsole No Waterproof Yes Outsole MS-1 Comfort Range -40° F (-40° C) to 60° F (15° C) ASTM F2413-11 M I/75 C/75 EH Meets