【Relieve Low Back Pain】 The back support consists of 4 memory aluminium spacers that are 4 times stiffer than commonly used PP strips and 2 steel springs placed along the lumbar side to provide 360° stronger vertical support for the lower back, preventing excessive muscle rolling and relieving pressure on the intervertebral discs.The back support is made of 4-way stretch material with 3D knitting technology with varying levels of compression to provide excellent fit, breathability and comfort. The inner layer is made of velour fabric, giving the ultimate baby skin-like silky touch, perfect for internal wear.【Prevent Back Injury】The back support with 2 elastic straps is designed to add extra compression to the lower back to prevent back injuries caused by lifting weights, standing or sitting for long periods of time, doing chores, working, etc. When wearing the back belt, it can relieve sore lower back muscles, herniated discs, sciatica, scoliosis and more.【Thoughtful Detail Design】 2 silicone non-slip straps are designed on both sides of the waist to prevent the lumbar support belt from rolling up when sitting, bending over or doing other activities.1.5 inches * 3.7 inches wide 2 elastic straps with touch fasteners provide a strong adhesion far beyond your expectation, made of PVC material usually used for baby clothes, won't scratch your skin or damage your clothes.