Specifications: Name: Posture Back Corrector Material: 85 Polyester 25 Mixed Fiber Color: Black Red Blue Size: XS S M L XL 2XL 3XL 4XL XS: Waist circumference 65-80cm,suit for weight: 50-60KG S: Waist circumference 80-95cm,suit for weight: 60-65KG M: Waist circumference 82-99cm,suit for weight: 65-70KG L: Waist circumference 84-103cm,suit for weight: 70-80KG XL: Waist circumference 86-107cm,suit for weight: 80-85KG 2XL: Waist circumference 88-110cm,suit for weight: 85-90KG 3XL: Waist circumference 90-112cm,suit for weight: 90-95KG 4XL: Waist circumference 92-114cm,suit for weight: 95-100KG Package included: 1 x Back CorrectorSITTING POSITION IMPROVEMENT:Applicable to men, women and youth(teenagers).Unhealthy posture can lead to long-term back pain, muscle pain, myopia, and other medical problems.Wearing a back corrector can develop muscle memory for a period of time, and you can keep your back straight even if you don't wear a posture correction device. MAGIC PASTE OF HIGH QUALITY,FREE ASJUSTMENT:The angles needed to correce are different, the design of correction belt can adopt adjustable nylon belt with magic paste of high quality so that it can be adjusted freely through the shoulder band. PERFORATION DESIGN,BREATHABLE,COMFORTABLE:The postural correction belt is made of very soft composite fabric and nylon tape, and breathable holes are adopted in back and shoulder straps. Heat dissipation and permeability have been upgraded to improve the comfort of wearing. APPLICABLE TO A VARIETY OF ENVIRONMENTS:Can be used at home, office, gym, yoga room and outdoor.Can be put directly on the clothes, skin irritation would not be caused by the support band. POSTURE CORRECTOR:This is a simple, non-surgical way to correct the humpback, improve the correct posture, and help you relieve from the pain in shoulder and back.