How to Shrink Sweatpants & Joggers

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Sweatpants are super comfortable and loose-fitting. They’re perfect for wearing while you sleep, exercise, or lounge around the house. [1] It’s pretty common, though, for sweatpants to stretch out a bit over time and become too big and baggy, especially if you wear them a lot. Luckily, there are several quick and easy fixes to help shrink your sweatpants back down to the right size.

Method 1
Method 1 of 3:

Shrinking Sweatpants in the Washing Machine

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  1. Add any other garments you want to wash hot in with them. Towels and socks are a great option, as they are designed to be washed hot without being damaged or shrinking.
    • Be careful not to mix whites with colored items, as the colors may bleed. [2]
  2. Be sure to follow the instructions on the label of the sweatpants, if any are included. Following the provided garment instructions will prevent the hot water from altering the color of your pants. [3]
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  3. Most washers have fairly simple heat settings. Usually, your options are “cold,” “warm,” and “hot.” [4] Whatever your washer’s settings, opt for the hottest one. [5]
    • During the manufacturing process, the threads that make up fabrics are put under stress, constantly being pulled and stretched. Exposing the fabric to heat will relieve some of this stress, causing the treads to shorten. [6]
  4. Many washers have a “heavy duty” spin cycle option, which tends to be the longest and most intense cycle. [7] If the washer you’re using doesn’t have this option, you can use the “normal” or “bulky” option.
  5. You want to keep the sweatpants under consistent heat while you’re trying to shrink them. For this reason, it’s a good idea not to leave them in the washing machine for too long after the wash cycle is complete. [8]
    • If there are any items you don’t want to run through the dryer, take them out and hang them on a clothesline to air dry.
  6. [9] Depending on the dryer you’re using, you’ll probably want to select the “regular/heavy” setting. [10] On other dryers, there will be a dial, and you’ll want to turn it to “more dry” or “very dry” in the section designed for cottons and other items that can be washed hot.
    • If you’re not happy with the results, simply repeat the process until your sweatpants have shrunk to your desired size.
    • If you don't want your sweatpants to shrink too much, check on them periodically as they're drying. Once they're small enough, you can let them air dry or lower the heat setting on the dryer so they finish drying but don't shrink any more. [11]
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Method 2
Method 2 of 3:

Using Boiling Water to Shrink Sweatpants

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  1. You’ll want to have enough water to fully submerge your sweatpants. You’ll also want your pot to be large enough that it won’t boil over when you put your pants in. [12]
  2. When it comes to shrinking clothes in boiling water, the hotter the temperature, the better. The energy in the heat will relieve some of the stress on the threads that make up the fabric, causing them to tighten and constrict. [13]
    • You’ll know the water has reached a rolling boil when large bubbles are rising swiftly to the surface and you can stir it without disrupting the boil. [14]
  3. Be careful to avoid splashing any boiling water out of the pot or onto your hands. [15]
    • Use a wooden spoon or long metal tongs to make sure the pants are completely submerged.
  4. Once you’ve turned off the burner, you want to leave the sweatpants fully submerged so the fabric can react to the heat of the water. For maximum results, leave the pants in the water for up to 20 minutes. [16]
    • To trap the heat in, consider putting a lid over the pot while your pants soak.
  5. You don’t want to use your hands to reach in to the pot, as the water will still be fairly hot and you want to avoid burning yourself.
    • You may want to leave the sweatpants in the colander or sink to cool for a few minutes before you pick them up.
  6. Using your hands, bunch up the sweatpants and squeeze the fabric tightly. You want to remove as much excess water as possible from the pants before you put them in the dryer or hang them up.
    • Avoid twisting or wringing the pants, as this may cause the fabric to stretch out again. [17]
  7. You’ll want to look at the pants when they’re dry to see how effective the hot water was. If you don’t have a dryer handy, use a clothesline. Otherwise, it’s a good idea to dry the sweatpants using the hottest setting, as this may provide additional shrinkage. [18]
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Method 3
Method 3 of 3:

Blow Drying Your Sweatpants to Shrink Them

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  1. You can do this using the hottest setting on a washing machine, or with water heated up in a kettle. [19] If you decide to use a kettle, set your sweatpants in the sink and pour the hot water over them, being careful not to burn yourself. You may need to do this a few times to make sure the pants are completely saturated.
  2. If you washed the pants in the washing machine, you may be able to skip this step. However, if you used a kettle or if there is excess water in the fabric from the wash, you’ll want to get rid of it before drying the pants.
    • Be careful not to wring them out or twist the fabric, as this may cause the fabric to stretch again. [20]
  3. You can do this on a tiled bathroom or kitchen floor, outside on a deck or patio, on an ironing board, or on top of your washer or dryer. [21]
  4. Some hair dryers only have one setting, while others have both a heat and speed setting. [22] It’s best to use one that has multiple heat options, as this will allow you to use a higher temperature to dry your pants.
  5. Take your time with each section. Hold the hair dryer a few inches from the sweatpants to make sure the hot air is hitting them directly. [23]
    • If there’s a part of the sweatpants you specifically want to shrink (such as the waistband), this method allows you to pay special attention to that area.
  6. Follow the same process you used to dry the first side. Take your time and make sure the pants are completely dry before you turn your hair dryer off. The more heat you apply, the better your results will be.
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      Tips

      • Whatever method you choose, if your sweatpants don’t shrink enough the first time you do it, you can repeat the entire process as needed to achieve the desired results.
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      References

      1. ↑ https://lifehacker.com/the-joy-of-sweatpants-1792769525
      2. ↑ https://www.mamaslaundrytalk.com/laundry-basics-how-to-sort-clothes/
      3. ↑ http://mentalfloss.com/article/73984/which-laundry-rules-do-you-actually-need-follow
      4. ↑ https://www.thelaundress.com/how-to/360-wash/washing/understanding-wash-cycles.html
      5. ↑ Rani Gorgis. Laundry & Cleaning Specialist. Expert Interview. 7 April 2021.
      6. ↑ https://www.npr.org/templates/transcript/transcript.php?storyId=98759520?storyId=98759520
      7. ↑ https://www.thelaundress.com/how-to/360-wash/washing/understanding-wash-cycles.html
      8. ↑ https://www.zmescience.com/other/feature-post/dryer-shrinks-clothes/
      9. ↑ Rani Gorgis. Laundry & Cleaning Specialist. Expert Interview. 7 April 2021.
      1. ↑ https://www.bestpickreports.com/blog/post/perm-press-dryer-settings-for-dummies
      2. ↑ Rani Gorgis. Laundry & Cleaning Specialist. Expert Interview. 7 April 2021.
      3. ↑ https://www.whowhatwear.com/how-to-shrink-a-shirt
      4. ↑ http://mentalfloss.com/article/21316/why-do-clothes-shrink-wash
      5. ↑ https://www.merriam-webster.com/dictionary/rolling%20boil
      6. ↑ https://www.whowhatwear.com/how-to-shrink-a-shirt
      7. ↑ https://www.whowhatwear.com/how-to-shrink-a-shirt
      8. ↑ https://www.bhg.com/homekeeping/laundry-linens/clothes/how-to-wash-clothes-by-hand/
      9. ↑ https://www.zmescience.com/other/feature-post/dryer-shrinks-clothes/
      10. ↑ https://www.thelaundress.com/how-to/360-wash/washing/understanding-water-temperature.html
      11. ↑ https://www.bhg.com/homekeeping/laundry-linens/clothes/how-to-wash-clothes-by-hand/
      12. ↑ https://home.onehowto.com/article/how-to-dry-clothes-with-a-hair-dryer-12345.html
      13. ↑ https://www.beautycrew.com.au/correct-way-to-use-hairdryer-settings
      14. ↑ https://lifehacker.com/de-wrinkle-clothes-with-a-hair-dryer-and-other-fashion-1530594084

      About This Article

      Article Summary X

      If your favorite pair of sweatpants has gotten a bit baggy, you may be able to shrink them by washing them in hot water. Put your sweatpants in the washing machine with some color-safe detergent and set the washer to the hottest setting. Then, select the longest wash cycle you can. On most washing machines, this will be something like “heavy duty” or “bulky.” As soon as the wash cycle is done, take the sweatpants out and move them to the dryer. Dry them on a high-heat setting, and choose the longest possible drying cycle. If your sweatpants still aren’t as tight as you like, try repeating the process a few times until you get the desired result. You can also shrink your sweatpants by putting them in a pot of boiling water, then turning off the burner and letting the pants soak in the hot water for 5 to 10 minutes. Use a pair of tongs or a long wooden spoon to push the sweatpants down into the water so that they’re completely submerged. After you’re done soaking the pants, drain off the water and firmly squeeze the fabric to remove as much excess water as you can. Just be careful not to wring or twist them, since doing so could stretch out the fabric again. Put your sweatpants on a line to dry, or toss them in a dryer on the highest heat setting to help shrink them even more. Another option is to shrink your sweatpants with a blow dryer. Soak the sweatpants in hot water, then carefully squeeze out as much excess water as you can. Lay the sweatpants out on a flat surface and go over them with a blow dryer set to the hottest possible setting. Hold the dryer just a few inches above the surface of the sweatpants and go over them in small sections. Focus on any areas you particularly want to shrink, such as the waistband. When you’re done with one side of the pants, flip them over and repeat the process on the other side.

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      Reader Success Stories

      • Sarah Walker

        Jan 18, 2019

        "My sweatpants were way too big on the ankle/calf. I tried one of the tricks, and it actually worked! Now they fit ..." more
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