Product Information for Ariat Product Description Go the distance in the Creston H2O Insulated, featuring a waterproof membrane construction, 200g Thinsulate™ Insulation, a molded heel cup, padded top collar, moisture-wicking lining, and a shock absorbing midsole. Additional Info Waterproof , Insulated , Outdoor Fit: True to Size Insole: EVA Upper: Waterproof Full Grain Leather/Cordura®