1. Body material: nylon
2. Function: reduce lumbar support, reduce injury
3. Back elastic support strip, double compression
4. Breathable and wear-resistant fabric, double-layer adjustable straps
5. Steel plate design, spine plate support, more fit the lumbar curvature
6. 8 compression strips, double support inside and outside
7. Nylon strap design, easy to wear and not easy to slip off
8. Uniform force and free movement
9. Weight: S 280 grams, M 300 grams, L 310 grams, XL 320 grams