The Premier Edge grip socks and the anti-skid technology on the external surfaces of the sock, grips to your footwear eliminating any points of slippage. Improved stability and security in your footwear allows you to maximize transfer of energy as you change direction, accelerate and decelerate, maximizing your performance. Trusted by Pro Players all over the US How-To Wear Since Premier Edge grip socks grip to your footwear they must be worn with direct contact to the shoe. Use of a traditional sock over or under the Premier Edge sock will create a point of slippage and reduce effectiveness. Footballers (soccer) cut the foot off of their game socks to create a sleeve. The sleeve is then used to overlap the Premier Edge sock allowing the anti-skid technology to perform effectively while still wearing team issued game sock. Care Machine wash in cold water with like colors. Turn sock inside out when machine drying.