FLA Orthopedic Safe-T-Sport EZ-ON Neoprene Knee Wraps are easy to apply to injured and swollen knees. The adjustable knee support is made of sports neoprene for therapeutic warmth using a soft terry lining. It was designed with an opening so that the knee wrap doesn't bunch at the back of the knee and instead remains comfortable for you. The knee support brace is donut-shaped but can be removed or cut into a superior or inferior horseshoe.