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 supportive.4 Sizes For Best Fit. Posture corrector compatible with men, women, teens and kids. Our clavicle brace is unisex, which are compatible with both men, women and kids. Ideal compatible with 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").Back straightener with 2 Moveable Foam Shoulder Pads under your armpits and wont dig into your skin. Our back corrector is made with Breathable, washable fabric for long-lasting back support. Elastic Belts and 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 difference.Invisible Under Clothes. The 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. Healthy back posture corrector has 2 support bars on the back which ensure stability and provide robust support to improve your posture. 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.