Features: 1. Correct wrong back and shoulder posture. Prevent hunchback. 2. Provide back and shoulder support, which will help prevent impacts and bending of the spine and correct bad posture to maintain proper sitting, standing and walking postures. 3. The 3D integrated design provides a uniform force to the clavicle shoulder to hold it in place. 4. Breathable fabric: Selected breathable fabric, not sultry four season available. 5. Hook and loop closure, widened shoulder strap, easy to put on and take off. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement. Specification: Type: Posture Corrector Fabric: 85% polyester, 20% blended fiber Color: black Appicable age: teenager, adult Size:Suitable waist Suitable height Suitable weight S:80cm-95cm 160cm-165cm 60-65kg M:82cm-99cm 160cm-165cm 65-70kg L:84cm-103cm 165cm-170cm 75-80kg XL:86cm-107cm 170cm-175cm 80-85kg 2XL:88cm-110cm 175cm-180cm 85-90kg Size Chart Size: : S Suitable waist(cm/in): : 80/31.5-95/37.4 Suitable height(cm/in): : 160/63-165/65 Suitable weight(kg): : 60-65kg Size: : M Suitable waist(cm/in): : 82/32.3-99/39 Suitable height(cm/in): : 160/63-165/65 Suitable weight(kg): : 65-70kg Size: : L Suitable waist(cm/in): : 84/33.1-103/40.6 Suitable height(cm/in): : 165/65-170/66.9 Suitable weight(kg): : 75-80kg Size: : XL Suitable waist(cm/in): : 86/33.9-107/42.1 Suitable height(cm/in): : 170/66.9-175/68.9 Suitable weight(kg): : 80-85kg Size: : 2XL Suitable waist(cm/in): : 88/34.6-110/43.3 Suitable height(cm/in): : 175/68.9-180/70.9 Suitable weight(kg): : 85-90kg includes:1 x Posture Corrector