YouErHui Womens Casual No-Show 8Pairs Socks of Hidden Flat Boat Line Low Cut 25% polyester Material: 72.3% Cotton / 25% Polyester / 2.7% Spandex. Premium Cotton keeps your feet dry and comfortable! Lightweight sock uniquely designed to be invisible and feel invisible. Comfortable No-Show Socks - Elastic Comfortable Flat Boat Line Socks to prevent slipping off. Ensure your socks stay put and your feet feel great. PERFECT FIT - for sport, boat shoes, pumps, flats, sneakers, chucks, boots - or even just around the house. Machine Wash Or Hand Wash Recommended. Size : Based on US Women Shoes Sizes 6-9. Please kindly check our Brand " YouErHui" and the Store "YouErHui". There is NO Quality Guarantee From Other Sellers.