The Heatholders Dahlia Lite Solid Black is a sensationally soft and warm sock. The diabetic-friendly sock provides relief for cold feet due to circulation problems. The thermal sock has a medium loop length with a 1.60 Tog rating. They are made from a specially developed heavy bulk yarn with long pile cushioning. The sock is non-binding and comprises 93% Acrylic, 6% Polyester, and 1% Elastane.