Changing a loose skirt into a waist can be achieved by sewing elastic bands yourself. The specific steps are as follows:

1, first prepare a loose skirt, try the upper body effect and determine the waist width.

2. Prepare an elastic band and put it at the waist of the clothes.

3. sew with needle and thread from the edge, and sew an elastic band on the waist of the skirt.

4. Repeat the operation in the third step and sew continuously from outside to inside.

5. Sewing is completed, as shown in the figure:

6, try on the upper body, the waist effect is achieved.