Features: The Back Straightener Back Support Belt, providing adjustable postures correction for both men and women while promoting proper shoulder and neck alignment. Craft from neoprene, this postures brace is adjustable to fit various body type, ensuring comfort and ease of use. Great for office worker, students, driver, fitness enthusiasts and anyone experiencing hunchback issues, this back support is designed with your needs in mind. Suitable for long hour of sitting in office, school, or while driving, it can also be used at home for daily postures improvement. Ergonomic Support and postures Correction, for back support and muscle training. Practical and portable, this postures corrector can be worn discreetly under clothing, making it convenient for everyday wear and travel. Specifications: Component: Neoprene Color: As picture shown Optional Size: app. As picture shown(Chinese Size,follow the size chart) Size:M Waist:80cm(31.50inch) Size:L Waist:90cm(35.43inch) Size:S Waist:100cm(39.37inch) Quantity: 1pc Package Includes: 1pc Back Straightener note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color of item.