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Wool Care
How to Shrink a Wool Sweater Download Article Co-authored by Safir Ali
Last Updated: February 4, 2026 Fact Checked
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Using a Washing Machine and Dryer
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Shrinking the Sweater by Hand
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This article was co-authored by Safir Ali. Safir Ali is the Co-Founder and CEO of Hamper Dry Cleaning and Laundry, a startup in Houston, Texas reinventing the laundry industry. With over six years of experience launching and operating Hamper, Safir specializes in innovative ways to simplify dry cleaning using the experience from his family's business. Safir holds a Bachelor’s degree in Business Administration and Management from Texas A&M University. Hamper offers 24/7 on-demand dry cleaning and laundry through delivery and kiosk services. Hamper has been featured on the Houston Rockets, Station Houston, the Houston Business Journal, BBVA, Yahoo Finance, and Innovation Map. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 169,386 times.
Over time, wool sweaters can become a little baggy. Luckily, shrinking them is a quick an easy process. If you want to shrink the entire sweater, place the sweater in a warm wash with some laundry detergent and then dry it in the dryer. If you want to shrink a portion of the sweater, such as the waist or cuffs, use the hand shrinking method. Both these methods will shrink the wool about 1 clothing size each time that you complete the shrinking process.
Steps
Method 1 Method 1 of 2:
Using a Washing Machine and Dryer
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1 Wash the sweater on a short-cycle warm wash. Place your woolen sweater into your washing machine by itself and set the machine to the shortest cycle.[1]X Expert Source Susan StockerGreen Cleaning ExpertExpert Interview This protects the delicate wool from becoming fluffy due to too much agitation.[2]XResearch source
Avoid putting the sweater straight into a hot wash, as this can cause it to shrink significantly and may make it too small. It is best to shrink the sweater in increments.
This technique works best on sweaters that are 100% wool.
2 Add laundry detergent or soap to the washing machine. This helps to agitate the fibers of the wool and encourages it to shrink. If possible, choose a laundry product that is designed for wool, as these are extra gentle and help to moisturize the yarn.[3]XResearch source
Follow the dosage instructions on the back of the packet.
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3 Place the sweater in the dryer on a low heat. This helps to further shrink the sweater whilst also completely drying it. Set the dryer to a low heat to avoid over-shrinking your sweater. Once the cycle finishes, check that the sweater is completely dry. If it is still wet, place it back in the dryer for another cycle.
Avoid air-drying your sweater, as this can cause it to return to its regular size.
4 Wash the sweater on a hot wash cycle if it is still too big. Try your sweater on for size once it is dry. If it still a little baggy, simply repeat the washing and drying process but set your washing machine to a hot wash. This causes the fibers to shrink even further.[4]XResearch source
Continue to repeat this process until you are happy with the size of your sweater.
Clara Parkes, Wool Historian and Textile Expert
Wool is an incredibly versatile fiber that lends itself well to felting and fulling techniques when handled properly. By understanding the unique properties of wool, one can gently encourage a garment to shrink through strategic agitation, moisture, and heat to achieve the desired size and shape.
Advertisement Method 2 Method 2 of 2:
Shrinking the Sweater by Hand
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1 Wet the wool sweater with hot water. Hold your sweater under a tap or dunk it into a bucket of water. Once it is wet, hold it over a sink for a few moments to let the excess water drip off. This makes the drying process a little quicker later on.[5]X Expert Source Susan StockerGreen Cleaning ExpertExpert Interview
If you are only shrinking a portion of the sweater, simply wet the area that you want to shrink.
2 Pat the sweater with a dry towel to remove the excess water. Lay the sweater flat on a towel and then place another towel flat on top of the sweater. Gently press down on the towel to lift some of the water out of the sweater. Continue to press down on the sweater until it is damp rather than dripping wet.[6]XResearch source
Opt for white towels, if possible, to reduce the risk of any color from the towels bleeding onto your wool sweater.
If your top towel becomes saturated, place it in the laundry and use a dry one.
3 Bunch the fibers together with your hands so that it dries in a smaller shape. Place your sweater on a dry towel and then use your hands to gently push the fibers of the wool together. Bunch up the fibers widthways to make it narrower or lengthways to make it shorter. The closer together that you bunch up the fibers – the more the sweater will shrink.[7]XResearch source
This works really well for shrinking the cuffs and sleeves of sweaters.
4 Allow your sweater to dry for 24 hours bunched up. Leave the sweater to dry flat on the towel, rather than hanging it up. This keeps the bunches that you made intact and encourages the sweater to shrink as it dries.[8]XResearch source
5 Turn your sweater over to finish drying. This allows the other side of the sweater to finish drying. This normally takes about a day; however, if you have a particularly large or heavy sweater, it may take a little longer.[9]XResearch source
If the sweater needs further shrinking, simply repeat this wetting, drying, and bunching process.
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Expert Q&A
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Question Is wool easier to shrink than cotton? Susan Stocker Professional Cleaner Susan Stocker runs and owns Susan’s Green Cleaning, the #1 Green Cleaning Company in Seattle. She is well known in the region for outstanding customer service protocols — winning the 2017 Better Business Torch Award for Ethics & Integrity —and her energetic support of green cleaning practices. Susan Stocker Professional Cleaner Expert Answer Yes, wool will shrink dramatically faster than cotton. It'll get a lot smaller too. I've seen some XL wool garments go down to toddler size with a hot wash or two. Synthetic fabrics tend to be the hardest to shrink. Thanks! We're glad this was helpful.Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 0 Helpful 6
Question Can wool shrink in the dryer? Drew Hawkins1 Community Answer If you dry wool on high-heat in the dryer, it will definitely shrink. If you plan to machine-dry wool, and you don't want it to shrink, set it to a no-heat setting. If you want the wool to dry completely, with only minor shrinkage, set your dryer to low-heat. Thanks! We're glad this was helpful.Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 3 Helpful 7
Question Does wool shrink every time you wash it? Drew Hawkins1 Community Answer Most wool will shrink if you don't wash and dry it properly. If you machine-dry wool on high-heat, it may shrink drastically. However, some wool garments may have already been pre-shrunk, so you can machine dry them on medium heat without risking additional shrinkage. Check the label on the garment for specific washing and drying instructions to avoid over-shrinkage. Thanks! We're glad this was helpful.Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 1 Helpful 2
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Things You’ll Need
Using a Washing Machine and Dryer
Washing machine
Washing powder or detergent
Dryer
Shrinking the Sweater by Hand
Towels
Water
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References
↑ Susan Stocker. Green Cleaning Expert. Expert Interview
Co-authored by: Safir Ali Laundry Specialist This article was co-authored by Safir Ali. Safir Ali is the Co-Founder and CEO of Hamper Dry Cleaning and Laundry, a startup in Houston, Texas reinventing the laundry industry. With over six years of experience launching and operating Hamper, Safir specializes in innovative ways to simplify dry cleaning using the experience from his family's business. Safir holds a Bachelor’s degree in Business Administration and Management from Texas A&M University. Hamper offers 24/7 on-demand dry cleaning and laundry through delivery and kiosk services. Hamper has been featured on the Houston Rockets, Station Houston, the Houston Business Journal, BBVA, Yahoo Finance, and Innovation Map. This article has been viewed 169,386 times. 29 votes - 95% Co-authors: 4Updated: February 4, 2026 Views: 169,386 Categories: Wool Care | Laundry In other languages German Spanish Dutch Indonesian Portuguese Japanese
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Yes No Advertisement Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Co-authored by: Safir Ali Laundry Specialist Co-authors: 4Updated: February 4, 2026 Views: 169,38695% of readers found this article helpful. 29 votes - 95% Click a star to add your vote
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Download Article Co-authored by Safir Ali 
How to Stretch Wool Sweaters (And Prevent Shrinking Them Again) 
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Co-authored by: Safir Ali Laundry Specialist This article was co-authored by Safir Ali. Safir Ali is the Co-Founder and CEO of Hamper Dry Cleaning and Laundry, a startup in Houston, Texas reinventing the laundry industry. With over six years of experience launching and operating Hamper, Safir specializes in innovative ways to simplify dry cleaning using the experience from his family's business. Safir holds a Bachelor’s degree in Business Administration and Management from Texas A&M University. Hamper offers 24/7 on-demand dry cleaning and laundry through delivery and kiosk services. Hamper has been featured on the Houston Rockets, Station Houston, the Houston Business Journal, BBVA, Yahoo Finance, and Innovation Map. This article has been viewed 169,386 times. 29 votes - 95% Co-authors: 4 Updated: February 4, 2026 Views: 169,386 Categories: Wool Care | Laundry In other languages German Spanish Dutch Indonesian Portuguese Japanese 
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1 Wash the sweater on a short-cycle warm wash. Place your woolen sweater into your washing machine by itself and set the machine to the shortest cycle.[1] This protects the delicate wool from becoming fluffy due to too much agitation.[2] 
2 Add laundry detergent or soap to the washing machine. This helps to agitate the fibers of the wool and encourages it to shrink. If possible, choose a laundry product that is designed for wool, as these are extra gentle and help to moisturize the yarn.[3] 
3 Place the sweater in the dryer on a low heat. This helps to further shrink the sweater whilst also completely drying it. Set the dryer to a low heat to avoid over-shrinking your sweater. Once the cycle finishes, check that the sweater is completely dry. If it is still wet, place it back in the dryer for another cycle. 
4 Wash the sweater on a hot wash cycle if it is still too big. Try your sweater on for size once it is dry. If it still a little baggy, simply repeat the washing and drying process but set your washing machine to a hot wash. This causes the fibers to shrink even further.[4] 
Clara Parkes, Wool Historian and Textile Expert 
1 Wet the wool sweater with hot water. Hold your sweater under a tap or dunk it into a bucket of water. Once it is wet, hold it over a sink for a few moments to let the excess water drip off. This makes the drying process a little quicker later on.[5] 
2 Pat the sweater with a dry towel to remove the excess water. Lay the sweater flat on a towel and then place another towel flat on top of the sweater. Gently press down on the towel to lift some of the water out of the sweater. Continue to press down on the sweater until it is damp rather than dripping wet.[6] 
3 Bunch the fibers together with your hands so that it dries in a smaller shape. Place your sweater on a dry towel and then use your hands to gently push the fibers of the wool together. Bunch up the fibers widthways to make it narrower or lengthways to make it shorter. The closer together that you bunch up the fibers – the more the sweater will shrink.[7] 
4 Allow your sweater to dry for 24 hours bunched up. Leave the sweater to dry flat on the towel, rather than hanging it up. This keeps the bunches that you made intact and encourages the sweater to shrink as it dries.[8] 
5 Turn your sweater over to finish drying. This allows the other side of the sweater to finish drying. This normally takes about a day; however, if you have a particularly large or heavy sweater, it may take a little longer.[9] 
Susan Stocker Professional Cleaner Susan Stocker runs and owns Susan’s Green Cleaning, the #1 Green Cleaning Company in Seattle. She is well known in the region for outstanding customer service protocols — winning the 2017 Better Business Torch Award for Ethics & Integrity —and her energetic support of green cleaning practices. 
Drew Hawkins1 Community Answer If you dry wool on high-heat in the dryer, it will definitely shrink. If you plan to machine-dry wool, and you don't want it to shrink, set it to a no-heat setting. If you want the wool to dry completely, with only minor shrinkage, set your dryer to low-heat. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 3 Helpful 7 
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