CoolMax® wicks moisture to help keep feet cool and dry. These socks are made with 58% CoolMax® Polyester, 35% Polyester, 6% Nylon, and 1 % Lycra® Spandex. The compression arch supports stability and comfort by keeping the fabric tight. The reinforced heel and toe add strength against abrasion. The comfort toe seam has an 'invisible' feel for comfort. The "Y" heel is deep pocketed for a perfect fit. Features a 1/2 cushion footbed.