Lorpen Men's Merino Ski Midweight Socks 75% Merino/15% Nylon/ 10% Lycra Imported Cushioning on the shin for added protection Merino woolfor warmth and to wick moisture away from the skin 10% LYCRA all throughout the sock means no slipping or bunching up so these socks will stay up in your ski boots all day long Flat knit toe seam means no irritation on your toes