Approximately 12.4″ Tall; 100% Waterproof; 5MM CR Flex-Foam Neoprene Liner Helps With Shock Absorption And Heat Retention Properties And Adjusts To The Contours Of Your Foot To Resist Blisters And Chafing; Breathable Mesh Lining Wicks Away Humidity And Perspiration Allowing Air To Travel Throughout Boot; Stretch To Fit Topline Binding Snugs Calf To Keep Warmth In And Cold And Debris Out; Reflective Pull Tab For Easy On/Off; Steel Shank For Structural Support; Triple Rubber Toe Reinforcement; Quadruple Rubber Heel Reinforcement; Easy To Clean Rubber Overlays; Quick Cleaning Durable Lightweight Rubber Outsole; Comfort Range: Sub Freezing To 65 °F; Half Sizes Order Up; Color: Black; Meets ASTM F2892-18 EH/ESR For Electrical Hazard/Electrical Shock Resistant Outsole Standard; Style #CHM000A