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 well under clothes. The back support is made of 4-way stretch elastic material with 3D knitting technology and varying compression levels for superior fit, breathability, and comfort. The inner layer is made of velvet fabric, providing a soft, skin-friendly touch suitable for internal wear. 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 work activities. May help relieve discomfort associated with lower back strain, disc issues, sciatica, and scoliosis when wearing the back belt. Considerate 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 two elastic straps provides strong adhesion; made with PVC material commonly used in clothing, it is designed not to scratch skin or damage garments. Durable construction. The waist support features double ing, with strict quality control for long-lasting use. Size Guide: Measure waist circumference at navel level. S: Fits waist 60–75 cm (23.6–29.5 inches) M: Fits waist 75–85 cm (29.5–33.5 inches) L: Fits waist 95–115 cm (37.4–45.3 inches) XL: Fits waist 115–125 cm (45.3–49.2 inches) XXL: Fits waist 125–140 cm (49.2–55.1 inches)