It can be changed to 1. Remove the waist of cotton trousers first, not completely, but from the front of the seams on both sides to the back center, that is, keep it in front and remove it at the back.

2. according to your thigh circumference, close your pants from the side seam.

3. Then put the waist in a little bit, preferably at the same distance as the pants, with a difference of no more than 1CM.

4. The waist is closed from the side seam, and the middle line of the back can be slightly closed.

5. When sewing the edges, try to make the seams inside the trousers longer and the seams outside the trousers shorter, and sew the same color lines along the texture to make the lines less obvious. Just sew it up.