Size selection: We have three models available: M, L, and XL. Measure your waist circumference before purchasing to ensure you choose the correct size. If your size is between two sizes, please choose the larger size for a more comfortable fitPosture Corrector: Relieve pressure on the nerves in the upper back and neck, as well as hunchback, neck, and back pain caused by prolonged work, looking down at phones, and computers. Helps straighten the back, helps relax the spine to a more straight position, and improves your posture betterBack support: Our back support posture corrector fabric is made of lightweight mesh design, ensuring good breathability and softness. You won't feel hot or uncomfortable when wearing it, and it won't restrict your armpits. It is still suitable for summer wear and provides reliable supportEasy to adjust: Our posture correctors feature adjustable shoulder straps and a snug fit design, making them easy to wear. Equipped with sturdy nylon buckles, they allow you to customize the tension you need, allowing you to easily put on or take off without any help, suitable for people of all shapesBoost confidence: Wear our posture stand for 5-10 minutes every day, then increase the time to one to two hours. After a period of time, you will find yourself standing higher and looking healthier. We support the quality of our products. If you have any questions or concerns, our dedicated customer support team is available 24 hours a day to ensure your satisfaction.