How to Unshrink a Wool Sweater in 5 Steps

The first step in the unshrinking process is to soak the wool sweater in a solution that consists of cool water and about two tablespoons of baby shampoo for at least 30 minutes (but no more than two hours). Liquid fabric softer can also be used in place of the shampoo.

Then, swish the sweater around to ensure that every inch of it is soaked in the solution. This is an important step, as the soaking of the sweater softens and relaxes the wool fibers, which then allow for reshaping and resizing.