SEOULSTORY7 5pack Men's Mid Cushion Low Hiking/Camping/Performance Socks 77%Cotton,14%Spandex, 2%Polyester, 7%Elastine Medium size fits to Men shoe 7-9US, Large size Men shoe 9-11US Multi functional technical socks. Midweight extra pile cusion padding in the heel and ball protect the foot from shear and prevent painful blisters. Moisture wicking,anti-bacterial. Ideal for outdoor sports-snowboard,Camping and hiking,climbing,trekking,outdoor trail The Y- Heel Tab Helps With Slipping Your Socks On and Off. Great elasticity and stay up:compressed top holds the sock securely on ankle. Made in Korea