The structure of the human body is mainly composed of height and circumference (chest storage).

The shoulder width of a woman is a high point of two heads. However, the end point of shoulder width must be 0.7 to 1.3 centimeters outside the width of the back.

The back of the human body is curved outward, and the chest width is inner arc, so the width of the back is larger than that of the chest width by 3 centimeters.

When playing the board, the width of the shoulder is determined according to the shape of the garment.

With shoulder width, you can set back width and chest width.

For example, the chest circumference is 94 centimeters, the shoulder width can be 30% centimeters plus 10~11 centimeters, 50% shoulder width equals 19.5 centimeters, the 50% back width can be reduced 50% centimeters by 1.3 centimeters to 18.2 centimeters. 50% chest width can be reduced by 50% back width to 50% centimeters.

If the shoulder is narrow, the corresponding shoulder shoulder will also be reduced to about 0.7 centimeters.