Pro Mountain Cotton Quarter Ankle Cushion All Day Hiking Athletic Sports Socks &hellip; 73% Combed Cotton / 20% Spandex / 5% Polyurethane / 2% Polyester , Made in South Korea Imported Machine or hand wash, use drying racks or tumble dry low recommended PROTECTION FOR YOU : 132N thick max cushion applied on feet and ankle, which protect your feet from blister and fatigue, working nice for athletic activities like hiking, trail running, long miles walk, tennis, crossfit, gym and also for all-day on the feet work like chef. These quarter socks also goes nice with steel toe work boot shoes(all activity mentioned by actual verified purchase reviews). SUPPORT FOR THE FEET : comfortable compression around the bridge of the foot and ankle, climate controlling instep mesh, reinforced spandex hold your feet gently and do not slide so you dont have to adjust your socks while wearing. NATURAL YARN FOR YOUR SKIN - if youve been having trouble with nylon socks or polyester ones (synthetic yarns), its time to try cotton yarn socks for less rash and friction. Also by applying mesh structure on instep, climate control and anti odor function has been enhanced. COMPORTABLE ALL DAY : protection + support + sweat wicking mesh cotton knitting create the real comfort for your feet and your daily workout, sports and more.