Birkenstock Women's Cotton Slub Logo Grey Sock,Small Go to amazon.com Related posts Check expert advices for birkenstock socks cotton? Feature94% cotton and 4% polyamide and 2% elastane.No show ankle cutHigh level of soft skin-friendly cottonMachine wash cold line dry. DescriptionThis comfortable ankle sock is 94% Cotton, 4% Polyamid, 2% LYCRA elasticated, Featuring a pressure-free cuff and the Birkenstock logo on top.