Relieve lower back pain The back brace contains 4 memory aluminum braces that are four times stiffer than commonly used PP strips, and places 2 steel springs on the waist side to provide 360-degree stronger vertical support for the lower back, preventing excessive muscle rolling and Reduce stress on your disc. Worn Under Clothes Back support with 4-way stretch elastic material 3D knit technology provides superior fit, breathability and comfort with varying levels of compression. The inner layer is made of velvet fabric for the ultimate baby-skin silky feel, perfect for layering. Prevents Back Injuries The back support with 2 elastic straps is designed to add extra pressure around the lower back to prevent back injuries from lifting heavy weights, standing or sitting for long periods of time, doing housework, work, etc. Relieve low back muscle pain, disc herniation, sciatica, scoliosis, etc. when wearing a harness. Designed with details in mind 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 or doing other activities. 1.5*3.7 wide size Velcro 2 elastic straps provide strong adhesion far beyond your expectations, made of PVC material usually used for baby clothes, will not scratch your skin or damage your clothes. DURABLE AND SATISFACTORY SERVICE The lumbar support features double seams, quality controlled and very durable.