• 67% COOLMAX®, 14% RUBBER, 17% NYLON AND 2% LYCRA® FIBER. • COOLMAX® ACTIVE fabric wicks moisture away from the skin. • NYLON dries quickly and resists moisture absorption offering a cool, soft and flexible sock. • LYCRA® fiber provides lasting elasticity and a memory fit that retains shape. FEATURES: • Double welted CCM cuff keeps sock comfortably in place. • Form fitting and durable, giving you a thin second layer feel. • Hand sewn ultra-flat antifriction toe seam.