Clothing shrinkage is usually something most people want to avoid, but for people looking to create a tight, form-fitting trousers, sometimes buying a pair that are made of 100 per cent cotton and have a decent fit and then shrinking them at home is a good option. Following these steps will shrink any cotton trousers.
Purchase cotton trousers or jeans that are not preshrunk or prewashed. While any cotton garment will shrink at least a little as a result of this process, a garment that has not been previously shrunk will shrink a lot.
Turn your washing machine to its highest hot water setting and its longest washing setting, and wash the trousers.
Take the trousers out of the washer and put them in the dryer. Set the dryer for the highest heat setting and dry the trousers. After drying, leave them in the dryer for about half an hour.