Innovative Design Upgraded Posture Corrector incorporates 2 adjustable straps across your chest and waist which avoid cutting into your underarms, and minimize risk of underarm chafing. Double X Back Brace Ergonomic Design ensures Alignment and Stable support to improve your posture. Double Stress Points provide better position and better back support. Unlike regular back straightener posture corrector that only single support, that are unstable, loose easily and not supportiveChoose 4 Sizes For Best FitPosture corrector for men, women, teens and kids! Our clavicle brace is unisex, which are suitable for both men, women and kids. Ideal for students and workaholics who sit all day at desk and have posture problems. Attentions: Adult -- Available in 3 sizes: M(23"-28"), L(27"-36"), XL(35"-50"). Kids and Teens -- Available in 3 sizes: S(18"-23"), M(23"-28"), L(27"-36") (Note:we recommend you Choose the Bigger Size and adjust for the best fit)Comfortable and Highly AdjustableBack straightener with 2 Moveable Softer and Foam Shoulder Pads under your armpits and wont dig into your skin to ensure high comfort. Our back corrector is made with Breathable, durable, washable and high-quality fabric for long-lasting back support. Elastic Belts and strong Velcro Straps allow you to adjust to comfortable level. So Start wearing posture corrector belt for 20-30 minutes a day, gradually wearing it for 1-2 hours and feel the differenceInvisible Under ClothesThe correct posture is healthy and kiss humpback or scoliosis goodbye for kids, women and men. This back brace can be worn invisibly under clothes which enables you wear it anywhere even in school, and it is still beautiful when worn outside. We recommend that you wear clothes first, and then wear our back brace posture corrector. Best for work, study, home, party, leisure, driving, walking, and other occasions.Improve Posture More Effective, Healthy back posture corrector has 2 support bars on the back which ensure stability and provide robust support to improve your posture. Effective back support to pull your Muscles and Spine Back to Original. If you Sitting at work and study all day causes pain in the back and shoulders. Using our back straightener not only improves your sitting posture and relieve soreness, but also makes you look more attractive and increases your confidence