The first and original Heat HoldersA(R) Crew sock! Keep feet warm on the coldest of days and pull on this pair of solid color crew length Heat HoldersA(R), the warmest thermal sock. Thick and chunky, these Socks are made from a specially developed heavy bulk yarn which has extreme thermal qualities. With long pile cushioning, these thermal socks will keep your feet comfortable and warm. The interior of each sock is brushed to be super soft while trapping heat next to your skin so you stay warmer longer. And Heat Holders are non-binding, and diabetic friendly. Advanced thermal yarn 7X warmer than the average cotton sock Soft, brushed interior traps heat Non-binding, safe for diabetic feet, and those with poor circulation Single pair pack Machine washable Order today!