ATTENTION:PLEASE MIND THE SIZE CHART BEFORE BUYING TO ENSURE THE BOOTS FIT YOU. The sizes 11-14 displayed are for Men. Waterproof Material: Made with 100% waterproof CR Flex-Foam,absorbs impacts, retains heat and flexes with your feet as you walk Keep Warm: Heat-resistant insulation prevents radiated body heat from escaping,and returns up to 90% of your body’s warmth. Comfort rated: -4°F/-20°C to 50°F/ 10°C. Lightweight Rubber Neoprene Boot – The unbeatable CR flex-foam boot is lightweight and completely waterproof, paired with 4-way stretch nylon to make your feet stay as comfortable as possible in your extreme setting. TideWe Rubber Neoprene Boot 100% SATISFACTION GUARANTEED – Please contact us at the first time if you have any question,and we will be very glad to help solve issues you come across.