its extra small but yet its big.. i like it to show my belly alittle how can i make my tank top a bit smaller / tighter
If it's made of cotton, soak in boiling hot water then put it in the dryer. Even 50% cotton can shrink some. Some synthetic materials with no cotton won't shrink at all, in that case you can take it to a business that does clothing alterations.
try the best to use Needlework by your hand, you can Sewing anyplace of tank top as you want. If you don't know how to do it, jut take it to the dryer shop,they will help you.
Put it in the dryer.