1. Thin and lightweight material is breathable and sweat-absorption for comfortable wearing all day long. 

2. With hook and loop, it can be adjusted to better fit your body. 

3. Form the correct seating posture, protect eyesight and prevent short-sightedness. 

4. Force the shoulder to be extended fully. 

5. Decrease your shoulder and waist pain and improve humpback to shape a nice-looking figure. 

6. Suitable for workers, teenagers and other people who have bad seating walking habits.