The inside is fluffy and warm. The size is listed as 23/24cm, but I think the fit is just right for 23cm. I got these from someone else, but they became too small before I could wear them. Camouflage boots with waterproof properties and a warm lining. - Color: Camouflage - Material: Synthetic leather and fur - Features: Waterproof, warm lining, adjustable straps Thank you for looking.