4 memory aluminum stays and 2 steel springs provide 360-degree vertical support for the lower back, stabilizing the lumbar region and reducing pressure on the discs. Under clothing friendly design: 4-way stretch elastic material with 3D knit technology offers multiple compression levels for a secure fit, breathability, and comfort. The inner velvet lining provides a silky touch for a smooth feel against the skin. Back injury prevention and relief: The back brace includes 2 elastic bands that add extra compression in the lower back to help prevent injuries from weightlifting, long periods of standing or sitting, housework, and work tasks. It can help alleviate waist pain, and symptoms from herniated discs, sciatica, and scoliosis when worn. Thoughtful design details: Two anti-slip bands on the sides prevent the belt from riding up during sitting, bending, or other activities. The wider Velcro closure with two elastic bands provides stability. The fastening uses PVC material commonly used in clothing and will not scratch the skin or damage clothing. Use scenarios: - Heavy lifting or manual tasks at work or home to protect the lower back. - Long periods of sitting or standing in an office or at home to manage discomfort. - Daily activities such as housework and chores that stress the lower back. Specifications and features at a glance: - 4 memory aluminum stays - 2 steel springs - 360-degree lumbar support - 4-way stretch elastic fabric - 3D knit technology - Multi-level compression - Inner velvet lining for a silky feel - Anti-slip side bands - Wider Velcro closure with two elastic bands - PVC material designed for clothing, skin-friendly and non-damaging to clothes Note: Designed to be worn under clothing for discreet support.