EASY TO USE: Design allows for easy sliding onto the leg, stays in place during activity, fits right or left COMFORTABLE: Support and comfortability combined into a versatile knee brace, for adults dealing with sprains, strains, arthritic knee conditions, and more TARGETED COMPRESSION: Stay active and comfortable with 360-degree compression, unique 4-way stretch supports your sore, weak, and injured knees THERMO REACTIVE: Unique thermo reactive technology fabric additive absorbs and reflects your own body heat to help improve recovery time, measure around knee for size, S/M - fits 12"-16", M/L - fits 16"-20", L/XL - fits 20"-22" TRUSTED BRAND: Mueller Sports Medicine has been a trusted leader in sports medicine for over 60 years and is committed to helping you heal, reduce pain, and elevate your performance