Made by lp support their extreme wristthumb support helps to keep your skin dry and comfortablemade of breathable coolprene covered with coolmax lining this is a unique construction which helps retain body heat by warming the affected area and so increasing blood circulation accelerating the bodys natural healing process by relieving pain swelling and stiffness this helps injuries recover fasteras an added bonus this wraparound wrist support is one size fits all and is designed to fit