Featuring a tailored compressive design and an open patella, the Ultimate Performance advanced ultimate compression knee support helps to avoid bunching behind the knee and has a cross-over strap system for added stability and a perfect fit. This pro, level 3 support is great for relieving the symptoms of arthritis, bursitis and tendonitis and offers springs made of steel to ensure moderate medial and lateral support. It can be worn on both right and left knee and stimulates blood flow to prevent build-up of lactic acid. Plus, a breathable 4-way stretch fabric guarantees increased air flow and flexibility.