The DonJoy Performance Trizone Left Knee Support combines bracing and compression into one low-profile sleeve for ultimate support. The Trizone Knee Support is a unique 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 anti-bacterial and thermal regulating properties. The three distinct compression zones include: a stability zone with strategic places injected silicone to provide support for the knee joint and the benefit of enhanced proprioception, a compression zone that 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.