1、Non-restricting design fits both men and women and both teenagers and adults. 2、Adjustable design, fits chest circumference size 27.6-47.2 inch. 3、The padded neoprene and ergonomic figure 8 design of the Posture brace provides maximum comfort and support. 4、Thin and discreet. Easily fits underneath a shirt. 5、Lightweight, breathable, and highly resistant to water, weather and daily wear and tear. 6、Suitable to be used in a variety of settings and activities. This brace is designed to mold seamlessly with the upper and middle back, giving you postural support and stabilizing your clavicle. Once worn, the brace will pull the shoulders into an proper position, all the while realigning the thoracic spine and supporting the middle and upper back. Over time, the brace will help correct and relieve the negative symptoms of bad posture which include back, shoulder and neck pain and tension headaches. And using it, you can easily use the posture back brace by yourself without requiring help to get it on and off. Features: Non-restricting design fits both men and women and both teenagers and adults. Adjustable design, fits chest circumference size 27.6-47.2 inch. The padded neoprene and ergonomic figure 8 design of the Posture brace provides maximum comfort and support. Thin and discreet. Easily fits underneath a shirt. Lightweight, breathable, and highly resistant to water, weather and daily wear and tear. Suitable to be used in a variety of settings and activities. Specifications: Materials: Neoprene Size: S, M, L (Optional) Size Detail: 20kg~40kg / 44.09~88.18lb (S) 40kg~75kg / 88.18~165.35lb (M) 75kg~100kg / 165.35~220.46lb (L) Color: Black Gender: Unisex Package Size: 180 * 140 * 40mm / 7.09 * 5.51 * 1.57in Package Weight: 80g / 2.82ounces Note: Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Package List: 1 * Posture Brace 1 * Posture Brace