This style fits true to size, order your normal size. Upper: Synthetic textured leather. Waterproof Lining: Extra warm and comfortable insulated faux fur with 200 grams of 3M Thinsulate insulation Lining of insock: Faux fur Insole: Shock-absorbing EVA for added comfort and support with aluminum thermal shield to help keep feet extra warm. Removable for easy replacement, if needed. Outsole: Durable TPR with high traction sole engraving Round toe