1. 【Relieve lower back pain】 The backrest contains Memory, and steel springs placed along the waist side, providing stronger vertical support to your lower back, preventing excessive rolling of your muscles and reducing pressure on your discs. 2. 【UNDERGARTEN】 Support made of elastic material with stretch, knitting technology with different compression levels, for superior fit, breathability and comfort. The inner layer is made of fabric, which provides a silky touch, for wearing inside. 3. 【PREVENT BACK INJURY】 Backrests with elastic straps are designed to add extra compression around the lower back to prevent back injuries from weight training, long time standing or sitting, doing housework, working, etc. Relieve pain in the waist muscles, herniated disc, sciatica, scoliosis, etc when wearing the back belt. 4. 【THOUGHLY DETAIL DESIGN】Anti-slip bands are designed on the two sides of the waist, preventing the waist support belt from rolling up when sitting, bending or doing other activities. expectations, will not scratch your skin or damage your clothes.