1, you can consult a specialized clothes repairer, who is more professional.

If you have mastered the basic sewing skills, you can also modify them at home. The specific method is as follows:

(1) First measure the waist size, measure the belt size, and then subtract your actual waist size.

(2) Secondly, carefully remove the belt. According to the size just measured, you can put away the extra size on both sides of the pants, not one side, but as many on both sides, and the sewing lines should be arranged reasonably.

(3) Finally, it needs to be put back at the waist. After the waist is installed, the transformation is successful.