Posture Corrector: which can effectively improve back curvature by training the spine and muscle memory, relieve shoulder and back pain, and make us more confident Improve Wearing Comfort: has added two movable soft shoulder pads at the shoulder position, thereby reducing the friction between the edge of the shoulder strap and the shoulder, and improving the wearing comfort. Two movable sliding rails are inserted in the back to help support the weight of the back and reduce the pain in the waist Imported Fabrics: Using strong, ightweight, soft and porous ventilated import materials, can keep the skin comfortable. It is worn over the T-shirt, tight blouses or shirts it looks inconspicuous and yet you can take full advantage of the straight holder and you feel immediately as the attitude improves.It can be worn during study, office, leisure or walking to improve posture Achieve Results in a Short Time: Insist on using 15-20 minutes a day, and then gradually increase the use time, but preferably no more than 2 hours. After 14-60 days, you can see obvious correction effects. With daily shoulder exercises, the effect will be better Quality and Service Guarantee: a worldwide reputation for quality and service. about the product, you can always contact customer service and reply to you within 24 hours.