Womens Knee High Plain Casual Socks With LYCRA (Pack Of 3) Cotton, Nylon, Elastane Size US 6-8, UK 4-6, EUR 37-40. Size US 1.5-5.5, UK 12.5-3.5, EUR 31-36. Ladies quality casual socks available in black or white. Ideal for casual or work wear. Fiber contents: 72% cotton, 26% nylon, 2% lycra elastine.