Tools and materials: scissors, needles, thread, elastic band.
1. Cut a gap at the waist and inside of the head of the skirt.
Then insert an elastic band in it. The elastic band should be measured to suit your own length.
3. Then sew only two ends, and the waist of the skirt will be smaller.
Method 2: sewing elastic band directly.
Tools and materials: needle, thread, elastic band.
1, put the elastic band directly on the back waist.
2. Sew both sides with needle and thread.
3. That will do.