Description: Comfortable Material: Posture correction is made of polyester material, breathable and comfortable, providing you a comfortable wearing experience.Design: Shoulder straightener belt back hollow design, breathable, even in hot environment can keep your back fresh, not stuffy sweat.Features:Back support brace helps you improve your back posture, adjust sitting and standing posture, and enhance your confidence.Easy to Wear: The lightweight design allows the posture brace to be worn under clothing without affecting the appearance or effect.Applicable Population: Back brace is suitable for all kinds of people such as men and women, adults, teenagers, office workers, etc., and it is also an ideal gift choice for them. Specification: Material:? polyeste Size Chart: Size: Length,waistlineM: 44cm/17.32inch 82cm-99cm/32.28inch-38.98inchL: 44cm/17.32inch 84cm-103cm/33.07inch-40.55inchXL: 44cm/17.32inch 86cm-107cm/33.86inch-42.13inchXXL: 44cm/17.32inch 88cm-110cm/34.65inch-43.31inchXXXL: 44cm/17.32inch 90cm-112cm/35.43inch-44.09inch Package Includes: 1 Back Brace ? Note: Please allow slightly errors 1-2cm differences due to manual measurement.