How to Unshrink Clothes: Step-by-Step Guide for Every Fabric

Soak the garment in lukewarm water with baby shampoo or hair conditioner for about 30 minutes, roll it in a towel, then gently stretch it back into shape and dry it flat. Wool and jeans need a slightly different approach.

Based on the published sources below. Not yet tested by FixMyThings.

You pull your favorite top out of the dryer and it now looks like it belongs to a child. Before you give up on it, it’s worth trying this method, which needs only a sink, a towel and something from your bathroom.

To be accurate, you can’t truly reverse shrinking. What you can do is relax the fibers and stretch the garment back toward its old shape. Results vary, and none of our sources gives a success rate.

โšก At a glance

30 minTypical soak
FreeUsing what you own
LukewarmWater temperature
Air dryNever tumble
Best onCotton, wool, jersey
4Fabric types covered

Before You Start

๐Ÿท๏ธ Check the label

For mixed fabrics, find the main fiber and follow that method.

๐Ÿงด Use the right product

Baby shampoo or conditioner softens fibers. Regular shampoo won’t do the same job.

๐Ÿ“ Measure a match

Lay a similar garment beside it, so you know the size you’re aiming for.

๐Ÿšซ Don’t wring

Twisting a wet garment can damage it. Press gently instead.

The Basic Method: Cotton and Jersey

1

Make the Soak

Lukewarm water and a softener

Fill a sink or bucket with lukewarm water. Stir in about one tablespoon of baby shampoo or gentle hair conditioner per quart of water, until you see a few bubbles.

Sources vary on the amount. Oxfam uses much less, about a capful or teaspoon, so you can start small.

2

Soak the Garment

About 30 minutes

Push the garment under the water and leave it for around 30 minutes. Bob Vila suggests up to an hour, and Oxfam suggests 10 to 30 minutes depending on the fabric.

Why this works: Softening products relax the fibers, which makes them easier to stretch.

3

Remove the Extra Water

Don’t rinse and don’t wring

Lift the garment out and squeeze it gently. Lay it on a large towel, roll it up and leave it for about 10 minutes. It should end up damp, not dripping.

Don’t leave it too long. If it dries out, spritz it with the soaking solution.

4

Stretch One Section at a Time

Firm but gentle

Lay the garment on a dry towel. Pull opposite sides gently, and hold each stretch for a few seconds.

  • Waist: hold both side seams near the hem and pull outward.
  • Sleeves: hold the cuff and the shoulder.
  • Length: hold the shoulders or collar and the hem.

Pro tip: Hold finished sections in place with pins, paperweights or a heavy book.

5

Dry It Flat

Keep it away from the dryer

Leave the garment flat to air dry, with the weights in place. Cleanipedia suggests checking after an hour, while it’s still damp, and stretching again if it’s pulling back. If it’s still too small, repeat the whole process.

Other Fabrics

Wool and Cashmere

Be extra gentle with these delicate fibers. Sources disagree here:

  • Cleanipedia suggests one tablespoon of vinegar in lukewarm water for 25 minutes. Then lay it flat and reshape it with rolled towels, because pulling risks damage.
  • Oxfam and Bob Vila use the basic method above, with a very gentle conditioner or baby shampoo.

Jeans

Cleanipedia offers three options:

  • The gentle way: use the cotton method, pull carefully, and hang to dry.
  • The quick way: spray only the tight area, such as the waistband, and wear them while damp.
  • The bold way: wear them in a shallow warm bath for 10 to 15 minutes, then keep them on for about an hour.

Synthetics

For nylon, acrylic and polyester, Cleanipedia suggests soaking for 15 to 20 minutes, pressing between two towels, then laying flat and pulling into shape. Bob Vila says tighter weaves like these and silk resist stretching more, so don’t overdo it.

Why Clothes Shrink

Cotton, linen and wool absorb water and swell. Heat then makes the fibers tighten and lock, and tumbling in a dryer tightens them further.

Frequently Asked Questions

Can you really unshrink clothes?

Not exactly. Cleanipedia says you’re stretching them back into shape, not reversing the shrinking.

Should I rinse out the conditioner?

Don’t rinse it before stretching. Afterward, Bob Vila says to wash the garment if it feels stiff or soapy, and Cleanipedia suggests washing it on a cold cycle.

Can I use regular shampoo?

No. Cleanipedia says it’s made for cleaning, not softening.

How do I get the size right?

Use a tape measure or a similar garment as a guide. Cleanipedia also suggests wearing the item while damp until it dries.

How can I stop it from shrinking again?

Air dry it where possible, and check the care label. Oxfam suggests drying wool flat and re-stretching it gently after each wash.

Did your clothes stretch back?

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Sources

  1. How To: Unshrink Clothes (Bob Vila)
  2. How to Unshrink Clothes (Cleanipedia)
  3. How to Unshrink Clothes (Oxfam GB)

Last updated November 6, 2026