A corset includes a main body and a side body. The left and right sides of the main body are provided with a female buckle belt. The side body is provided with a plurality of male buckle belts which can be adhered to the female buckle belt, and a shoulder belt which can be hooked to the main body. Thus, the male buckle belt can be used to connect the female buckle belt, and the combination position and the degree of looseness can be adjusted flexibly and elastically according to the different body shape of the user.一種束胸衣，係包含一主體與副體，該主體左、右二側邊設有母扣帶，該副體設有可沾黏於該母扣帶的複數條公扣帶，以及可勾接於該主體的肩帶，藉此由公扣帶接合母扣帶，並可依使用者的體型胖瘦之不同，進行靈活彈性的調整其結合位置與寬鬆程度。
