For Waist size 26"-45" FIR light energy activates the water molecules in the blood increasing the blood flow and oxygen in the bloodstream. As the far infrared light energy is absorbed, the body's cellular metabolism improves resulting in enhanced cell re-generation and tissue repair. FIR Therapy has been found to help athletes recover from injury and provide relief to individuals with diabetes and other common circulatory problems such as Arthritis and Raynauds Syndrome. Rally Active therapeutic braces and supports are made with leading-edge FIR Technology, an activated Bamboo charcoal with far infrared rays woven directly into the fabric. This combination of Bamboo fiber and patented Poliyou™ material enhance your body’s natural FIR allowing far infrared rays to delve deep into the tissue and muscle, reducing swelling and pain.