TARGETED PAIN RELIEF WITH THE MCDAVID KNEE SUPPORT W/OPEN PATELLA. The McDavid Knee Support w/Open Patella provides thermal/compression therapy. The outer fabric is made from heavy-duty material, making it a very durable product. It provides minor support to help relieve pain and promote the healing of tendonitis, bursitis, arthritis and other non-specific knee conditions. The seamless back-of-knee and anatomical design make thissupportthe most comfortable in the market.