Key Features 4 memory aluminum stays — quadruple harder than standard PP strips for firm vertical support 2 steel spring braces along the waist for 360° lower back stability 4-way stretch elastic with 3D knitting technology — superior fit and breathability Velvet inner layer — soft, skin-friendly, wearable under clothing 2 elastic compression straps for adjustable tightness Silicone anti-skid bands — prevent the brace from rolling up during movement 16-hole polyester mesh — lightweight and breathable Skin-safe touch fasteners — won't scratch skin or damage clothing Sizes: M | L | XL | 2XL Specifications Color: Black Material: Polyester Mesh, 4-Way Stretch Elastic, Velvet Inner Support System: 4 memory aluminum stays + 2 steel spring braces Body Area: Lower back, lumbar, waist, abdomen 🚚 Shipping & Delivery 🇺🇸 Free US Shipping — ships to United States only Estimated delivery: 4–7 business days Move Without the Pain. 🇺🇸 Free US Shipping The Adjustable Lower Back Brace delivers targeted lumbar support through a 6-piece internal support system — built for all-day wear whether you're at a desk, on your feet or lifting at the gym.