Upgraded Durable 168N 85%Cotton+10%Polyester+5%Spandex POINTS: No Show low cut socks,Silicon grips at heels design keep socks stay at your feet, healthy , never fade,fresh ventilation,best choice for whole seasons. SIZE: US Shoe Size 8-11, fit all of your families(adults and teenagers) FEATURES: Moisture Wicking + Don??t slide off + 3 Silicone Strips at Heel + The top of the sock comes up high enough to cushion the tongue of the shoe. The back grip keeps the sock in place & it doesn’t end up under your foot. SHIPPING: FBA .Package Includes: 6 Pairs Socks of grey+white+black The back grip keeps the sock in place & it doesn’t end up under your foot.