Thermoplastic Elastomers sole Rugged tall 10 inch mid calf upper features padded printed nylon panels/lightweight waterproof rubber shell with fully insulated lining The Ava cold weather boot offers a water resistant construction to keep your feet dry; padded collar and gussetted back zipper keep debris out. Removable/washable cushioned EVA insole and padded collar offer extra cushioning for your feet; 200 Gram Thinsulate insulation keeps your feet warm. Gussetted back zipper allows for easy and secure adjustments. Durable lightweight TPR outsole ensures traction/shock absorption/good abrasion resistance in snowy or icy conditions