SEOULSTORY7 5pack Men's Bio Climbing DryCool Cushion Hiking/Performance Crew Socks 70%Cotton, 20%DryCool yarn, 7%Polyester,s 2%Spandex, 1%Elastine Medium size fits Men shoe size7-9US, Large size fits Men shoe9-11 Multi Purpose hiking socks. Dry-Cool yarn for quick dry. Midweight extra pile cusion padding in the heel and ball protect the foot from shear and prevent painful blisters. Moisture wicking,contains odor guard to fight odor, anti-bacterial. Ideal for outdoor sports-Camping,hiking,climbing,trekking,outdoor trail,running,diverse performance The Y- Heel Tab Helps With Slipping Your Socks On and Off. Great elasticity and stay up:compressed top holds the sock securely on the calf. Made in Korea