Origin: Mainland China Effect: Bone Care Item Type: Braces & Supports Model Number: Back Lumbar Support Belt Number of Pieces: One Unit Material: Composite Material Application: Back Features: Relieve lower back pain. The back brace contains 4 memory-aluminum stays that are quadruple harder than commonly used PP strips and 2 steel springs placed along the waist sides, offering 360-degree stronger vertical support to the lower back, helping prevent excessive muscle movement and reduce pressure on discs. Wear comfortably under clothes. The back support is made of 4-way stretch elastic material with 3D knitting technology and varying compression levels for a superior fit, breathability, and comfort. The inner layer is made of velvet fabric, providing a soft, smooth touch suitable for direct wear against the skin. Helps prevent back injuries. The back support features 2 elastic straps designed to add extra compression around the lower back to help prevent injuries during weight lifting, prolonged standing or sitting, housework, or general work activities. May help relieve lower back muscle discomfort, disc herniation, sciatica, and scoliosis when wearing the back belt. Thoughtful design details. Two silicone anti-skid bands are located on both sides of the waist to help prevent the support belt from rolling up during sitting, bending, or other movements. The wide hook and loop fastener on the elastic straps provides strong, secure closure. Made with PVC material commonly used in clothing, it is designed not to scratch the skin or damage garments. Durable construction. The waist support features double stitching, with strict quality control for long-lasting durability. Size Guide: Measure waist at navel level. S: Fits waist 6075 cm (23.629.5 inches) M: Fits waist 7585 cm (29.533.5 inches) L: Fits waist 95115 cm (37.445.3 inches) XL: Fits waist 115125 cm (45.349.2 inches) XXL: Fits waist 125140 cm (49.255.1 inches)