DonJoy Trizone Knee Support Sleeve DonJoy Performance Trizone Knee Sleeve is a hybrid design combining the properties of compression and bracing in a single sleeve. The carbonized bamboo circular knit construction allows for targeted, zonal compression around the knee joint with thermal regulating properties. Three distinct compression zones which include: a stability zone with strategically placed injected silicone to provide support for the knee joint and the benefit of enhanced proprioception, a compression zone which improves circulation and provides mild support to the joint structure and surrounding muscle tissue, and a comfort zone that provides lighter compression for enhanced fit and better range of motion. The Trizone knee support is a low profile performance product designed to keep you moving through repetitive motion injuries including strains, inflammation and swelling, tendonitis and soreness. Features & Benefits Three zones of compression strategically placed around the knee to deliver peak performance Silicone banding injected directly onto the sleeve offers bracing and support All-natural Carbonized Bamboo is thermal regulating and helps eliminate odors Stash pocket holds cards and keys Anti-migration technology helps to keep the sleeve secure to the thigh and eliminate slip Reflectivity for enhanced visibility in low light conditions Sizing Chart: Determine the correct size according to the circumference around the kneecap: SIZE KNEE CIRCUMFERENCE SM 13in – 14in MD 14in – 15in LG 15in – 17in XL 17in – 19in Items ship on the next business day after cleared payment is received. Business days do not include Saturday, Sunday or Holidays.