95% Cotton/5% Nylon Material: Bottom: 95% cotton 5% Nylon; Top layer: 80% Nylon 20% Spandex. Free Size: 5.5~10 (US). Best elasticity can be suitable for women’s feet. Anti Slip & Low Cut: Silicone gel circle to keep them firmly on your instep and heel grip, will not fall off the feet; Low Cut shoe shape unique design keep invisible. Perfect Comfort: No show socks enhance the durability, comfortability, sweat-wicking and breathability. TRUE NO SHOW: No show liners stop pretty close to the toe line, just covering the end of your toes.Elastic comfortable socks perfect for flats,ballet shoes, boat shoes ,pumps, high-heel shoe,loafers, sneakers.Let you will look fabulous while feeling good.