Ice TEK High-Performance Ski Snowboard Socks Merino Wool ANATOMICALLY DESIGNED: With right and left specific fit you will be getting the best and most comfortable fit. COMFORTABLE: Cushioned sole and toe for shock absorption and abrasion resistance. The instep and cuff are also elasticized to prevent slippage and hold the sock in place. DURABLE: Padded Shin to cushion and prevent shin bang so that you can ski or snowboard all day. MERINO WOOL: These socks have a luxurious blend of merino wool (40%), acrylic (40%), nylon (17%) and spandex (3). This will give you all of the warmth and comfort without the itch. SIZING: Our Medium sock will fit Mens size 5 1/2 to 8 1/2 and ladies sizes 6 1/2 to 9 1/2. Our Large sock will fit Mens size 9 to 13 and ladies size 10 to 14.