Gently used, in excellent condition 100% Waterproof 8mm CR Flex-Foam neoprene liner, 100% waterproof with exceptional comfort, flexibility, shock absorption and heat retention properties; adjusts to the contours of your foot to resist blisters and chafing Fleece lining for additional warmth Lightweight, cushioned EVA midsole for added comfort Extended rubber coverage for added protection Comfort insole bioDEWIX™ antimicrobial footbed insert topcover with NZYM™ for odor control and moisture management Vibram® Arctic Grip A.T for wet ice traction coupled with XS Trek Evo adding durability and improved grip on wet and dry surfaces Pull-tab for easy on and off bioDEWIX™ antimicrobial footbed insert topcover with NZYM™ for odor control and moisture management Estimated height: 43cm/ 16.9in Estimated max calf circumference: 38cm/ 15in Comfort Range: -60°F to 30°F / -50°C to -1°C