3&6Pack Seoul Story7 Women Casual No-Show Socks Flat Boat Line w/Heel Grip Medium 78% COTTON / 20% POLYESTER / 2% POLYURETHANE Elastic Comfortable Flat Boat Line Socks of Silicone Anti-Slip Heel Grip Comfortable No-Show Socks for your everyday active lifestyle! Ideal for Sneakers, Boat Shoes, Loafers Small size fit Women Shoe 6-8US,Medium size fits Men shoe size 7~9(Women shoe8-10US)