This product uses special structure which can bring traction to chest by stretching the back muscles, and prevent excessive stretching of back muscles, thus maintain a graceful posture. Magico Nakayamashiki use light and breathable mesh material, you can wear it comfortably even when it is worn under clothes, it does not affect the appearance. Size is for reference only. Please preferentially refer to waist size if any different conditions occur between height and waist size.