Tightening a shirt can be a quick and easy way to give it a more fitted look. There are a few different ways to do this, depending on the fabric of the shirt and the desired results.
One common method is to use a sewing machine to take in the sides of the shirt. This is a relatively simple technique, but it can be time-consuming if the shirt is large or has a lot of seams. Another option is to use a fabric glue to bond the sides of the shirt together. This is a quicker method, but it is important to use a glue that is specifically designed for fabric and to follow the manufacturer’s instructions carefully.