30CM hard support bar, back has a backrest, for the spine, fixed upper back Help improve the back posture, "keel" support, give the back solid support 8 type around the shoulder protector, integrated adjustment , cross-type around the balanced force point Strong high-stretch shoulder straps, enlarge the force area to reduce the local pressure, long-lasting, line locking edge Lightweight and convenient, suitable for a variety of occasions, no binding with the belt, anytime, anywhere, orthopedic posture is actually very simple Gender: Men's, Women's. Material: Neoprene. size:S,M,L,XL,2XL,3XL Easy to Wear, Adjustable, Back Support, Breathable. Package Includes: 1 x Posture Corrector Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. You can use it not only while sitting in front of the computer or driving, but also while exercising or gardening.Improve your overall posture at work or in life. Lightweight and convenient, suitable for a variety of occasions, no binding with the belt, anytime, anywhere, orthopedic posture is actually very simple. Strong high-stretch shoulder straps, enlarge the force area to reduce the local pressure, long-lasting, line locking edge. 8 type around the shoulder protector, integrated adjustment , cross-type around the balanced force point. Help improve the back posture, "keel" support, give the back solid support. 30CM hard support bar, back has a backrest, for the spine, fixed upper back.