Enhance your comfort and confidence with this adjustable back brace, designed to support a 37.8 to 42.5-in. waist. Crafted from breathable, four-way stretch elastic material, it offers a perfect fit and all-day comfort. Four memory-aluminum stays and two steel springs provide 360-degree vertical support, reducing muscle strain and pressure on your discs for effective back pain and sciatica relief. The 3D knitting technology delivers targeted compression, while anti-skid silicone bands ensure it stays in place during wear. Soft velvet lining adds a touch of luxury, making this brace a discreet and reliable choice for improved posture and a healthier back. Size: extra large. Color: Black. Material: Nylon.