Provides support to stiff, weak or injured knees. A unique combination of neoprene-blend and Polartec Power Stretch-RX materials helps keep the knee warm and limber while releasing excess heat and moisture. Antimicrobial treatment inhibits growth of odour causing bacteria on the support. Breathable, moisture-wicking Polartec Power Stretch-RX in back panel for comfort. Open kneecap design for support. Dual precision straps provide a contoured, personalised fit. Durable neoprene-blend material for strong support, soothing warmth and comfort. Sleeve is easy to put on and take off. Use on right or left knee. For left or right knee, measure around kneecap while in a standing position. 19.0-22.0in/48.3 - 55.9cmFuturo Performance Knee Support Extra Large.