Clothes made with natural fibers (like cotton and denim) will shrink more easily than clothes made with synthetic fibers like polyester. You can definitely shrink synthetic clothing in the wash, but it might not shrink as much. [2] X Research source This shrinking method works for most types of fabric, but don’t try it with delicate fabrics, like wool, silk, and cashmere. Hot water and high heat can damage delicate fabrics. Clothes that are labeled “pre-washed” or “pre-shrunk” may not shrink in the wash. They’ve likely already been shrunk to their smallest size by the manufacturer.
Don’t have access to a dryer? Use a blow dryer on a high heat setting to dry your clothes and get a similar effect. [4] X Research source
Machine washing wool or cashmere in warm water can damage it. If you’re really attached to this piece of clothing, a safer alternative is to hand wash it in a bucket with warm water. [7] X Research source
If you need to shrink your clothes without a dryer or are worried about shrinking your wool/cashmere clothing too much, use a blow dryer instead! Dry the clothing with the blow dryer until it’s the size you’re aiming for. [9] X Research source
If you pull your wool or cashmere clothing out of the dryer and it’s too small, don’t panic. Mix 2 tablespoons (30 mL) of fabric conditioner with warm water in a container and soak the clothing in it for 15 minutes. Then, press out the excess water with a towel, stretch it to the size and shape you want, and let it dry on a flat surface.
Machine washing silk with warm water can damage it, so proceed with caution. For a safer approach, soak your silk clothing in warm (not hot) water for a few hours, stirring it regularly.
