Provides complete mobility for all levels of activity; Reduces the effects of arthritis, damaged cartilage, sprains, or strains; Flexible medial and lateral stays offer side-to-side support and ligament stability; Moist heat therapy increases blood circulation and relaxes sore muscles; Neoprene construction with a unique wrap design for easy application; Open-back design eliminates pinching, binding, and rubbing; Can be worn over or under clothing for comfort during work or play