Correct bad posture in many scenarios Support your back with the help of 2 aluminum plates, elastic back support straps allow you to pull yourself up and avoid bending while driving, sitting for long periods of time reading rocks, breastfeeding while sleeping, spending too much time in bed Hunchback. Desk or laptop at work, etc. Customized and adjustable sizing based on your waist, 3 sizes available. If your waist is between sizes, choose a larger back support strap. If there are any size issues, please feel free to contact us. S (waist: 66-89 cm), L (waist: 89-112 cm), XXL (waist: 112-130 cm). .Easy and comfortable to wear Made of breathable and soft neoprene, the posture support won't cut your arms. Wear it for 2 hours a day and you will see a charming and confident figure in 4 months. You can wear it while watching TV, working on the computer, and studying, except when sleeping and exercising. .Designed for men, women and seniors. Satisfaction guaranteed. We are committed to providing the best experience possible. .Full Back & Ergonomic Design: The posture corrector fully supports your back, shoulders and waist. Thanks to the principle of the Y-shaped design, the shoulder straps are pulled to both sides, and the waist belt is supported, allowing the shoulders and waist to have a backward stretching effect. 2 sets of aluminum straps provide extra support to help reduce load on the spine and muscles. .