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Transform loose polyester clothes into perfectly fitting wardrobe faves
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You have the perfect polyester piece in your wardrobe, but there’s one problem: it’s too big. But did you know it’s actually really easy to shrink polyester clothes at home so they fit better? Whether you want to shrink a polyester shirt, dress, pair of pants, or other type of garment, the 2 methods below will give you fast results. Keep reading to learn how to use a washer and dryer or even just an iron to shrink your polyester clothing down to size.

How do you shrink polyester down a size?

Machine wash polyester clothing in hot water and dry it on high heat to shrink it. Re-wash and dry your garment 2-3 times until it's small enough. For more drastic shrinkage, iron your polyester clothing on medium heat while it's wet. Put a towel between the iron and your garment to protect it.

Method 1
Method 1 of 2:

Using a Washer & Dryer

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  1. High heat is great for shrinking clothes, but it also fades them. Turning your garment inside out before washing and drying it will help protect it from fading. [1]
    • High heat can also cause color bleeding and transfer, so wash your polyester garment by itself.
  2. Use your washing machine’s hottest water setting and the longest wash cycle. [2] When it comes to shrinking clothes, the more heat, the better.
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  3. Dry the polyester on high heat. Use the highest heat setting and longest dry cycle.
  4. Pull your garment out of the dryer and check out its new size. If it didn’t shrink as much as you hoped, don’t worry! Just repeat the washing and drying steps again to shrink it even more.
    • Keep in mind that the more you wash and dry the garment, the more the color may fade.
    • Only repeat the process 2-3 more times. If your clothing still isn’t small enough, use the iron method instead.
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Method 2
Method 2 of 2:

Using an Iron

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  1. Set the washing machine to the hottest water setting and the longest wash cycle. [4]
  2. Do this right after it’s done in the wash so it’s still soaked with hot water.
  3. This will prevent the iron from damaging your clothing.
  4. Keep ironing until your garment is completely dried. The heat from the iron combined with the warm water in the garment will cause the fabric to shrink!
    • Don’t use the steam setting on your iron—it will prevent the polyester from drying.
  5. Voila—your polyester clothing should be much smaller now! If it’s not small enough, try machine washing it in hot water and then drying it on high heat. If it’s still not small enough after that, it’s probably shrunk as much as possible, unfortunately. In that case, it might be time to accept defeat and add the piece to your pile of comfy, around-the-house loungewear!
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Expert Q&A

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  • Question
    How do I keep my polyester shirt from stretching?
    Kamel Almani
    Laundry & Cleaning Specialist
    Kamel Almani is a Laundry and Cleaning Specialist and the Co-Owner of WashyWash, a toxin-free and eco-friendly laundry and dry clean service based in Amman, Jordan. Kamel and his staff at WashyWash use Blue Angel certified and dermatologically-tested detergents. They also combine EcoClean and digital technology to provide an eco-friendly, convenient, and quality cleaning service. Kamel holds a BA in Design from the University of Applied Science, Amman.
    Laundry & Cleaning Specialist
    Expert Answer
    Don't hang it up after you wash it. Just fold it up and store it in your closet or dresser.
  • Question
    Can you shrink polyester in the dryer?
    Kamel Almani
    Laundry & Cleaning Specialist
    Kamel Almani is a Laundry and Cleaning Specialist and the Co-Owner of WashyWash, a toxin-free and eco-friendly laundry and dry clean service based in Amman, Jordan. Kamel and his staff at WashyWash use Blue Angel certified and dermatologically-tested detergents. They also combine EcoClean and digital technology to provide an eco-friendly, convenient, and quality cleaning service. Kamel holds a BA in Design from the University of Applied Science, Amman.
    Laundry & Cleaning Specialist
    Expert Answer
    Yes—first, wash it in very hot water using normal laundry detergent. Then, put it in a tumble dryer on high heat.
  • Question
    Can I use the boiling water method and use the dryer method after to shrink polyester?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Yes, absolutely! Putting your polyester in the dryer after boiling it will help it shrink more.
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      Tips

      • Some people have success shrinking polyester using boiling water. Bring a pot of water to a boil, then carefully add your polyester clothing and let it soak for around 15 minutes. Then, dry it on high heat (for additional shrinkage) or lay it out to dry. [5]
      • How much your polyester clothing shrinks will depend on what percentage of polyester it’s made up of. 100% polyester clothing is tougher to shrink and may only shrink slightly. Polyester blends (like polyester mixed with cotton) on the other hand, will shrink more, possibly even a whole size. [6]
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      References

      1. Safir Ali. Professional Dry Cleaner. Expert Interview. 15 September 2020.
      2. https://www.youtube.com/watch?v=vJKyBo6Hsvk
      3. Kamel Almani. Laundry & Cleaning Specialist. Expert Interview. 9 April 2021.
      4. https://www.youtube.com/watch?v=vJKyBo6Hsvk
      5. https://www.youtube.com/watch?v=vJKyBo6Hsvk
      6. https://www.youtube.com/watch?v=vJKyBo6Hsvk

      About This Article

      Article Summary X

      If you have a polyester item that’s too big, you can shrink it a little in your washing machine. Turn the garment inside out and put it through the wash on the longest, hottest cycle. Next, dry it for as long as possible with your dryer set to high heat. You may need to repeat this process 2 to 3 times to shrink the item as much as possible. Alternatively, wash the garment at high heat, then take it out of the washer and iron it on a low- to medium heat setting until it’s completely dry. If you want to learn how to shrink polyester with an iron, keep reading the article!

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      Reader Success Stories

      • Anonymous

        Oct 1, 2016

        "Worked really well. If you've ever purchased clothing (in my case shirts) on the internet from overseas, ..." more
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