Heat Holders Worxx Contrast Crew Socks for Ladies have all the warmth of their original but with a durable reinforced heel and toe. Thick, chunky, and with a massive tog rating of 2.34, these socks are made from a specially developed heavy bulk yarn with 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 to feel sensationally soft, and they trap warm air close to the skin to keeping your feet warmer for longer. Heat Holders are nonbinding; they are also diabetic friendly and provide relief for cold feet due to circulation problems. Made of 91% acrylic/5% nylon/3% polyester/1% elastane. Machine wash. Imported.Manufacturer style #: HHXL01681. 91% acrylic/5% nylon/3% polyester/1% elastane Heavy bulk yarn with extreme thermal qualities Long pile cushioning adds support Brushed for softness and warmth Nonbinding, diabetic friendly