FEATURES:- Crew Height, Medium Weight, Cushioned Foot. - High density cushioning on foot bottom. - Custom shrink treated Merino wool. - Ribbing above the ankle ensures a proper fit. - Reinforced heel and toe. - Elastic support around the arch. - Ring toe construction for a comfortable invisible seam. FABRIC CONTENTS: 67% Merino Wool, 29% Nylon, 4% Lycra® Spandex DARN TOUGH UNCONDITIONAL LIFETIME GUARANTEE Simply and without strings or conditions: if Darn Tough all weather performance socks are not the most comfortable and durable socks you have ever worn,return them for another pair or your money back. No strings. No conditions. For life. When you are really serious about something you make it yourself.