3-in-1 Corrector Support: Our adjustable back brace posture corrector with an ergonomic design, features 4 flexible ABS support bars that provide 3 in 1 support to straighten your back, shoulder, and lumbar, It won't make your armpits feel tight. The back support brace effectively improves posture and can relieve shoulder and waist, neck pain when worn for long periods, Fits office workers, computer users, as well as those in rehabilitation or recovery 3 Sizes for You to Choose: The back posture corrector women was designed with adjustable straps and features 3 sizes for you to choose from, suitable for most body types. We recommend measuring your waist (measured at your belly button) and selecting the appropriate size according to the size chart. If your waist is between two sizes, we recommend choosing the larger size. If you have any size and wear issues, We'll help you solve them as soon as possible Builds Confidence and Health: Regular use of a lower back brace helps correct conditions such as hunchback, trains your body to sit or stand in a healthy posture, and develops muscle memory to keep your back straight, helping to improve your overall spinal health and posture, making you look taller and slimmer. Back posture correctors for men can also relieve posture-related pain and provide long-term health benefits for people of all ages and lifestyles