All the same warmth as the original Heat Holders Crew sock, but in an extra long leg length - plus elasticated foot & ankle support. Works really well with boots and great for spending time outdoors during the cold winter months. Keep feet warm on the coldest of days and pull on this pair of solid colour long length Heat Holders for men, the ultimate thermal sock. Thick and chunky, Heat Holders are made from a specially developed heavy bulk yarn which has extreme thermal qualities. With long pile cushioning, these thermal socks will help keep feet fully comfortable and supported. The inside of each sock has been intensively brushed that not only feels sensationally soft but also traps warm air close to the skin keeping your feet warmer for longer. Heat Holders are non-binding. They are diabetic friendly and provide relief for cold feet due to circulation problems.