Principle of chest saving: chest saving is the saving of different positions around the chest height of the front piece of clothes. In order to make clothes fit, the amount collected at any position around BP point is called chest storage, not chest folding;

For example, you can wrap a sphere with a piece of cloth. Generally, the packaging is uneven, and there will be extra cloth. Folding these clothes is called saving.

Other styles of chest saving: in the design of clothing style and structure, there can be chest saving under the armpit, waist, armhole, collar, shoulder and front door;

The reason why the bust is upside down is that the bust is a functional structure, rather than a beautiful decorative design. Generally, clothes are hidden, while the bust is close to the shoulder and collar, and the armpit is the best hiding position; The end point of thoracotomy must be at BP point (the highest point in the chest), the starting point of thoracotomy is under the armpit, below BP point, the starting point is below and the ending point is above. When the chest is saved, the throat will naturally go up.