- 👉FITS CHEST CIRCUMFERENCE SIZE 28 - 49 INCH 👈 Our non-restricting design fits both men and women and both teenagers and adults. The velcro straps allow for easy adjustment. -MORE EFFECTIVE - Our ergonomic design features adjustable shoulder straps and a waist belt to allow maximum customization. With a 3 hours/day commitment, it will stabilize and align shoulders, neck and spine to relieve chronic pain around the area. The brace is also ideal for supporting the upper back and clavicle after an injury and preventing re-injury. - MORE COMFORTABLE - The idea behind the design is to help build muscle memory by correcting rounded shoulders and ensuring spinal alignment, so that over time, you will automatically straighten your back without the help of brace. The neoprene used in the brace is so breathable and lightweight that you can even wear it in humid and hot weather. Thanks to the detachable comfort pads provided with the brace, underarm discomfort will also be minimized.