Non Slip Aheletic Socks The rubber pad at the bottom can increase the friction between foot and socks socks and shoes or ground enhanch the grip and make exercise safer. It can also eliminating foot pain and anti-blisters, and make socks more durable. .Durable Athletic Socks Increasing the thickness of the heel and toe parts, to ensure socks and shoes more closely, wearing more comfortable and durable. .97% Polyester, 3% Elastane .Hand Wash Only, Machine Wash .Sports Socks .AZ-Socks .Easy to wash These Athletic Socks are not contracted, faded when washed in normal 40-degree water. You will find socks clean and fast dry. .