New Corrective Strap for Men and Women Adult Corrective Strap Back Sports Sitting Posture Corrector The three-point mechanical support principle is more confident to wear.Straighten your waist and back, don't let bad habits affect you.The adjustable plastic buckle is designed with plastic buckle.Back support Shoulder support can be worn both inside and outside.Webbing adjusts the fit of the product to the body.Comfortable and breathable soft skin comfortable and breathable.Velcro paste fixed shoulder with adjustable tightness. - Type: Corrective strap - Weight :m-0.052kg l-0.051kg xl-0.053kg - Size :m-13.4*8.7*4.7cm l-12.9*9*4.5cm xl-12.2*6*5.4 - Color: black - Material:Composite cloth