• 75%Cotton,20%Spandex,5%Polyesters Full cushion throughout;botton,top,ankle
• Medium size is for both Men and Women. Medium size fits Men shoe 7-9US(Women shoe8-10US), Large size fits Men shoe9-11US, X-Large: Men shoe 11-13US
• Midweight pile cushion padding protect the foot from shear and blisters.
• Ideal for outdoor sports-snowboard,Camping and hiking,skiing,climbing,trekking,outdoor trail
• The Y- Heel Tab Helps With Slipping Your Socks On and Off. Great elasticity and stay up.