The Wagner Body Science Thermal Support Ankle Adjustable provides relief from aches and sprains. It offers heat and support, assisting in healing and providing comfort. Key Features Relief from aches and sprains Provides heat and support Assists healing and provides support One size fits all Key Materials: Neoprene Blend (for thermal support); Nylon/Polyester outer fabric; Velcro fasteners.Wagner: Innovators in body science and thermal support solutions.Step foot into the support. Wrap the adjustable strap around the ankle to achieve a firm, comfortable level of compression and thermal retention.Neoprene Allergy: If a rash develops, discontinue use. Do not apply heat therapy to broken or irritated skin. Do not wear while sleeping.