Description: 【Durable Material】: The posture corrector is made of quality foam and EVA, breathable, comfortable, and moves freely but provides support. 【Adjustable】: Posture correct Belt with adjustable straps allows the most comfortable fit, and provides support for shoulder and back. 【Back Support】: Our upper back belt has EVA keel support,which can help straighten your back. 【Easily Wearing】: Back straightener for adults is easy to wear without any discomfort, its lightweight design allows the wearer to use the support under clothes. 【Application】: Comfortable trainer is suitable for sitting a long time. Great for office workers, students, teachers, etc. Specification: S:26cmx7.5cmx42cmx8.5cmx36cm/10.24inchx2.95inchx16.54inchx3.35inchx14.17inch M:26cmx7.5cmx52cmx8.5cmx40cm/10.24inchx2.95inchx20.47inchx3.35inchx15.75inch L:26cmx7.5cmx62cmx8.5cmx40cm/10.24inchx2.95inchx24.41inchx3.35inchx15.75inch Package Includes: 1 Posture Corrector Note: Please allow slightly errors due to manual measurement and different monitors.