Great for alleviating moderate knee pain, especially in areas under and surrounding the knee cap. The Knee Pro-Tec Patellar Tendon Strap provides compression on the patellar tendon, helping spread pressure uniformly across the tendon, reducing discomfort and irritation. The compression may also help stabilize your patella, improving its tracking. In addition, the Knee Pro-Tec absorbs stress to the knee, reducing vibrations in the femoral groove. The strap is made from neoprene, which stretches, allowing it to stay comfortably in place. Tubing, sewn into the neoprene, is used to provide gentle compression and a plastic loop is utilized to make it easier to adjust. The strap attaches with a velcro closure. Small is 10" - 12", Medium is 12 1/8" - 13 5/8", Large is 13 3/4" - 15 1/2", XLarge is 15 5/8" - 17 1/2". Available in Black.