Heat Holders® ULTRA LITE Holly Twist Long Socks for Ladies provide famous thermal protection and comfort in a lightweight profile, ideal for wearing in tighter-fitting shoes and boots. Keep feet warm on the coldest of days with these solid-color, lightweight, long-length women's Heat Holders socks. Heat Holders are made from a specially developed heavy-bulk yarn with extreme thermal qualities. The inside of each sock has been intensively brushed not only to feel sensationally soft but also to trap warm air close to the skin, keeping your feet warmer for longer. Heat Holders are non-binding. They're diabetic-friendly and provide relief for cold feet due to circulation problems. 89% acrylic/10% nylon/1% elastane. Machine wash. Imported.