Heat Holders Hank Worxx Lite Contrast Socks for Men have been designed to provide their famous thermal protection and comfort in a medium thick profile with a durable reinforced heel and toe. This design is ideal for wearing in casual shoes and boots. These crew socks from Heat Holders have a medium loop length with 1.60 thermal overall grade rating, and they're made from a specially developed heavy bulk yarn which has extreme thermal qualities. With medium pile cushioning, these thermal socks will help keep feet fully comfortable and supported. The inside of each sock has been intensively brushed, so they feel sensationally soft and trap warm air close to the skin to keep your feet warmer for longer. These socks are non-binding, diabetic-friendly, and provide relief for cold feet due to circulation problems. Made of 91% acrylic/5% nylon/3% polyester/1% elastane. Machine wash. Lay flat to dry. Imported. 91% acrylic/5% nylon/3% polyester/1% elastane Ideal for wearing in casual shoes and boots Heavy bulk yarn with extreme thermal qualities Interior brushed for softness and warmth Medium-pile cushioning adds support Durable reinforced heel and toe Non-binding, diabetic friendly