Hanes Men's X-Temp Active Cool Heel Shield Socks 4-Pack Polyester Spandex Nylon Imported 98% polyester/1% spandex/1% nylon Super-soft cotton blend soothes your every step. Wicks away moisture to keep you cool and dry. Open-stitch knitting design ventilates air to easily flow through fabric to keep you dry and comfortable. Compact heel cushioning gives you all the comfort without all the bulkiness.