80%Cotton+17%Polyester+3%Spandex Made in USA or Imported ? SIZE: S/M(US Men shoes size 6-10/Women size 8-12) ,L/XL(US Men Shoes Size 10-14/Women size 12-15) ? Breathable / Moisture Wicking / Don’t slide off / 3 Anti-skid Silicone Strips at Heel ? Improved Design: Rainforced Heel & Toes.Added Durability for Longer Life. ? Low cut NO SHOW design: Low cut on the top of the socks so they are completely invisible in athletic shoes, boat shoes, loafers making them the perfect no show casual socks ? Our Service: We provides top quality and excellent customer service. If you have any problem, please contact us for a full refund or a free replacement.