The Swede-O Thermal Vent Open Wrap ROM Hinged Knee Brace provides stability, comfortable support, gentle compression, and heat therapy to help relieve knee pain and promote healing. The ROM hinges have snap-in flexion (45, 60, 75, 90 degrees) and extension (0, 10, 20, 30, 40 degrees) stops, and also provide medial and lateral knee stability. This product is anatomically designed for pre-surgical knee instability and post surgical rehabilitation when flexion and extension control is indicated. The front opening does not cause pressure across the patella which helps prevent aggravation to injuries and helps reduce tenderness and bruising. Popliteal cutout helps increase comfort and reduces material bunching during knee flexion. The adjustable closures provide a customized fit and allow for variations due to swelling while the wraparound straps help prevent brace migration. This product contours to the natural shape of the knee for comfort; bilateral design fits right or left knee. Thermal Vent is engineered with MVT2. Thermal Vent Supports are a valuable aid to help rehabilitate injured tissue. These products provide warmth and heat therapy to help increase pliability and elasticity of muscles and tendons making them more responsive to therapy and exercise. The layered thermal lining features a soft, nylon material that wicks away moisture and a micro ventilated, breathable membrane that captures and retains your natural body heat to ease pain. This allows moist air to escape keeping the skin comfortable. With unsurpassed quality, these supports provide gentle compression and warmth to help reduce swelling and associated pain as well as promote recovery.