DescriptionEffectively correct the problem of incorrect posture of the adults' back by training your muscles and spine to return to their natural alignment, and help them to develop better skeletal development. Effective correction for adult's walking position, due to long-term sitting posture is not correct.Features- Color: Black. - Material: Sponge, Mesh Fabric, Steel Plate. - Size XS: 65-80cm(Suitable Waist), 28cm(Back Height); - Size S: 75-90cm(Suitable Waist), 29cm(Back Height); - Size M: 85-100cm(Suitable Waist), 29cm(Back Height); - Size L: 95-110cm(Suitable Waist), 30cm(Back Height); - Size XL:105-125 cm(Suitable Waist), 30cm(Back Height); - It will fit perfectly on your back and keep your upper body upright to improve your posture. - Easy to wear under clothing. - The back brace aids in the treatment of back pain, scoliosis, spondylolisthesis, and thoracic outlet syndrome - Breathable fabric, rigorous tailors. - Wearing for a long time can improve bad posture on the back and improve self confidence.