1.PREVENT BACK INJURIES:The back support with 2 elastic bands provides extra compression in the lower back area to prevent back injuries caused by weightlifting, long standing or sitting, housework, work, etc. Relieves waist pain, herniated disc and sciatica, scoliosis, etc. when wearing the back strap. 2.Relieves lower back pain: The back support contains 4 memory aluminium struts, which are four times harder than the commonly used PP strips, and 2 steel springs along the waist side, which provide the lower back 360° stronger vertical support and prevent excessive rolling away. Train your muscles and reduce pressure on your intervertebral discs. 3.Wear well under clothing: the back support is made of 4way stretch elastic material, 3D knitting technology with different compression levels for excellent fit, breathability and comfort. The inner layer is made of velvet fabric, which gives an ultimate silky touch like skin and is perfect for dressing from the inside. 4.Considerate detail design: On the two sides of the waist there are two nonslip silicone bands that prevent the waist support belt from rolling up when sitting, bending or other activities.