UNISEX BACK POSTURE CORRECTOR: Our scoliosis back brace fits waists circumferences from 24" to 50". Multiple sizes to choose from which for waists from:S: 24-30inch; M:30-35inch; L:35-39inch; XL, 39-44inch; XXL, 44-50inch. Please choose the suitable size for the best posture corrector according to our size chart.WEAR INCONSPICUOUSLY & WIDE APPLICATION: This back brace posture corrector is designed to be discreetly worn under your clothes or on top of them. Posture corrector for men and women is suitable for many occasions, such as work, home, leisure, driving, walking, and slight exercise.BREATHABLE MATERIAL: Back straightener posture corrector is made of high-quality fabric that is both comfortable and breathable making people wear products without any sense of discord. And the posture correction is lightweight but strong, soft, breathable, and washable.IMPROVE POSTURE & PAIN RELIEF: Our Back Brace has 2 flexible ABS support bars to realign your spine and reduce the pain caused by poor alignment, making your bones healthier, your circulatory system better, breathing more smoothly, and helping you develop good habits of sitting, standing, and walking.COMFORTABLE, ADJUSTABLE, EASY TO USE: Back straightener is equipped with fully adjustable straps. You can wear the posture brace according to your body shape and adjust the back support belt freely. We recommend you wear our back brace posture for 1-2 hours every day, and after 21days, you will notice you stand taller and have a healthy posture.