SAY GOODBYE TO BACK PAIN AND BAD POSTUREThe posture corrector provides back and shoulder support to reduce various types of shoulder, neck and back pain. It provides a natural way to improve your posture and your quality of life. You will look confident, healthy and younger. NEW POSTURE CORRECTOR & HIGH ELASTIC BELTThe back support adopts the newest PE back support plate to help vertebra get back and pull shoulders backward. The belt of back posture corrector is made of high elastic material, integrated molding, 8 word open shoulder double stretch, soft and comfortable. ADJUSTABLE SEAMLESS FIT UNDER OR OVER CLOTHESThe posture brace will not be noticed even though you wear this back brace support under shirt while working in the front of computer. So don't worry about bad impression with our posture corrector. Our posture corrector help you shape perfect back posture to show confident side. EASY TO WEAR & ADJUSTABLE WITH 25" - 44" SIZE RANGEUnlike other difficult to adjust back brace, our adjustable posture corrector ensure snug and comfortable fit. Just like putting on and adjusting a backpack, you can easily put on and adjust your strap to fit your body. Our posture corrector fits Chest sizes 25" to 44" and Weight(85 - 220Lb). 100% SATISFACTION OF AFTER-SELL SERVICEUse it as our instruction, you can easily learn how to use it, Note: Please do not use too tightly the first time. Size S: Suitable for underbust(cm)71-80cm,Suitable for height(cm)150-160cm,Suitable for weight(kg)45-55 M: Designed for underbust (cm)81-91cm, height (cm)155-170cm, weight (kg)55-70 L: Lower bust (cm) 91-111cm, Height (cm) 165-180cm, Weight (kg) 70-80