NWT Size 2XL - 3XL (48 - 60”) Measure around belly button Copper Fit Specific Uses For Product Arthritis Adult Material Polyester,Spandex, Rubber Power "X "adjustable strap system : Upper and lower customizable compression power straps provide advanced back support by distributing pressure evenly over a larger area. Unrestricted range of motion and reinforcement for weak lumbar muscles to help provide posture support and superior fit. Breathable Lightweight high-performance materials: State-of-the-art, vented materials are lightweight and promote air circulation to help keep you dry and comfortable sitting, walking, or lifting during sports, work, or play. Copper-infused for odor reduction CLASS I MEDICAL DEVICE; FDA Registered; HSA/FSA Approved.