The Thorocare Heat Therapy leg wrap is a self-closing pillow wrap and a standing wrap all in one. Our patent pending, three layer design is based on an understanding of how cold weather athletes dress; utilizing varying layers (wickaways, thermal insulators, and tough, breathable outer shells) to keep dry and warm. No need for microwaves, hot water, or concern that the gel packs will break. Great for: A) Keeping legs warm pre/post strenuous activity; B) Sweating the leg (eliminating the need for plastic wrap, pillow wraps, and stable bandaging); and C)Utilizing as a winter standing wrap