MATERIALS – 75%cotton 22%polyester 3%elastane.ImportedNO SHOW SOCKS – This fashion no show socks are the perfect solution to line the inside of your shoes. No show and low cut invisible design, suitable to most types of shoes like sneakers, boat shoes, loafers, canvas shoes.SOLID CASUAL SOCKS – Polyester/elastane blend provides softness and durability. Elastic band on the top gives elastic collar for easy on and off. It??s very elastic so it can fit your feet.COLOR & OCCASIONS – Super light and thin fabric, very soft and snug. Basic color is suitable with most shoes and suit. Most occasions available such as home, school, office, gym and outdoor, etc.SIZE – S: Fit for US women shoe size 9.5-12, M: Fit for US men shoe size 10.5-12.5.CUSTOMER SATISFACTION GUARANTEE – Hissox always provides high quality products.If you are not satisfied with our products, do not hesitate to contact us for a replacement or a refund in 30 Days.