Step One: Soak
Fill a sink or bathtub with lukewarm water then add a cap of baby shampoo to the water.
Place the garment into the sudsy water. Let it soak for a minute or two, then gently massage the item with your hands to help relax the fibers.
Remove the item from the water and gently squeeze it to remove some of the water. (But don’t wring the garment or rinse!)
Step Two: Absorb
Lay out a big, clean bath towel and lay the garment flat on top of it.
Roll the towel up from one end so the garment is wrapped inside. Press on the towel gently to absorb the excess water, then unroll the towel.
Step Three: Re-Shape
Grab another clean bath towel and lay the damp piece of clothing out on it.
Use your hands to gently stretch the item to its original size. Last, but not least, leave the clothing item on the towel and allow it to air dry completely.
NOTE: Don’t rinse out the little bit of shampoo that is left in the garment after Step One. This process doesn’t leave very much soap behind in the clothes, and the little soap that does remain helps keep the fibers pliable during the stretching process.