1.Our back straightener posture corrector is designed with human nature to provide proper pressure to your back and waist, improve bad posture, hunched back correction. Easy to wear, removable soft chest pads make it more comfortable and easier to clean. 2.Upper back brace for women, Optimized Size Guide for Comfort: Choose from S, M, L for a perfect fit. Note: Use adjustable straps to customize for comfort. The whole family can benefit from this fully adjustable posture corrector for all genders. Effectively get rid of shoulder, back and neck pain caused by sprains, muscle spasms and strains. 3.Wear this shoulder posture corrector for two hours every day, and the effect is remarkable after three weeks. The posture corrector is made of high elastic material, thin and light, breathable, comfortable, skin friendly, could fit. 4.This mens posture corrector is universal for both men and women. Body mechanics design, memory support to straighten the spine, improve hunchback, with strong support strength.