Rehband knee supports are designed to protect your knees when you are injured, but also to prevent injuries and re-injuries. They work by providing warmth and compression to your knees. (Read more.) The compression increases the receptive input from the knee, helping an athlete perform more controlled and stable movements. The warming effect of the knee sleeves helps with increasing blood flow quicker, and is effective for keeping knees warm throughout an activity. Rehband provides knee supports suitable for various activities and sports such as running, basketball, handball, functional training and weightlifting.