Posture Correction Belt, Kyosei Belt, Back Support Belt, Easy to Put On and Take Off, Natural Back Stretch, 3-Point Fixation, Unisex, Beautiful Posture in 21 Days, Lightweight Breathable Material, Adjustable (M) Brand: Generic Size: M Color: Black Manufacturer: AYJZLM-123 [Perfect Fit with Sizes for Men and Women] Available in two sizes: M (for women) and L (for men). M size (for women, height 145-165cm, weight 40-65kg) and L size (for men, height 165-180cm, weight 60-90kg) are recommended. It effectively supports slouching and rounded shoulders with a fit that matches your body type. [Easy One-Touch Attachment and Discreet Design] The shoulder straps and Velcro allow for easy one-touch attachment and removal. The ultra-thin mesh material is breathable and completely unnoticeable under clothing, allowing you to use it comfortably in all daily situations, such as desk work and housework. [Naturally Stretches the Back and Improves Posture] The ergonomic W-shaped back design and 3-point fixation naturally stretch the back muscles, bringing the shoulder blades inward and guiding the spine to the ideal position. It gently and naturally corrects your posture to a beautiful one. [Adjustable and Easy to Care For] You can finely adjust the support strength to your liking with the strap length and Velcro. Also, it can be washed, so you can keep it clean, making it ideal for long-term use. [Beautiful Posture Habit in 21 Days with 2 Hours a Day] We recommend using it for about 2 hours every day. Consistent and gentle correction support allows your body to remember the correct posture. By continuing for 21 days, you can feel a clear improvement in your posture and acquire elegant manners as a habit. Thank you for viewing.