Product Category:Corrature postureApplicable to: Hunchback, Poor Posture, Kyphosis, Curvature of the Spine, Thoracic Surgery Kyphosis, Thoracic Iordosis, Clavicle Fracture, Spinal Misalignment, Rounded Shoulder.Size: (Details look at the picture size table)S: Waist 23.6〃 - 29.5〃, height 130-160cm, weight less than 47.5kgM : Waist circumference 29.5〃-33.5〃, height 160-175cm, weight less than 67.5kgL: Waist 33.5〃 - 37.4〃, height 175-185cm, weight less than 82.5kgXL: Waist circumference 37.4〃 - 41.3〃, height 185-195cm, weight 82.5kg or moreMaterial: breathable soft, healthy skin, elasticCan be washedDurable Velcro: Robust adhesion, adjustable tightness according to body shape, durable, close to the waist.Hold on for about 2 hours every day: Don't wear it too tightly at the beginning, and adjust it according to your own strength later.Gifts for yourself and your family(It is not suitable to wear it when you are doing strenuous exercise)