Product Size: XL Colors: black and red Material: elastic mesh Content: 1 * thermal waist protector 1. Relieve Back Pain The lumbar support belt effectively relieves back pain caused by sciatica, scoliosis, herniated disc, degenerative disc disease, sprains, osteoporosis and ligament laxity. Also recommended for sports, heavy physical labor and daily housework. 2. Curved aluminum bar for long-lasting support The back of the waist belt is made of curved aluminum bar, which fits the back perfectly. It provides enough support in the lower back to keep the lumbar straight, correct posture and stability 3. 2 detachable automatic heating pads without charging, safe and automatic heating. The heating principle is that far-infrared rays absorb natural energy at room temperature, and after contacting with human skin, they resonate with water molecules to produce a heating effect 4. Individually adjustable Our backrests can not only be adjusted according to waist size. The outer straps are also used for individual compression and support adjustments. 5. Special breathable fabric: The waist support suspenders are made of breathable fabric. You won't feel unhappy or uncomfortable when you wear it. A piece of high stretch fabric with durable Velcro provides extensive compression to the lower back. A lower back brace straightens your back to relieve pain.