How to Loosen Up a Wool Jacket

by Sarah Emerald ; Updated September 28, 2017

Loosen up a wool jacket of any size by blocking.

matinee jacket image by hazel proudlove from Fotolia.com

Wool is an elastic fiber, and a wool garment can be stretched and shaped when wet to fine-tune the fit. The more dense the wool, the less it will stretch, but all wool can be manipulated to some degree. A loosely-woven sweater jacket can be blocked to be several sizes larger or smaller depending on your needs. A tightly-woven wool jacket can usually be made a size larger by blocking.

Fill the sink with warm water and add two capfuls of baby shampoo.

Immerse the jacket in the water. Do not stir or agitate the water.

Soak the jacket for 15 minutes. Drain the sink and gently squeeze the water from the jacket. Fill the sink with cool water and soak the jacket for 15 minutes to rinse. Drain and squeeze the water from the jacket.

Try the wet jacket on. Pull the jacket out away from your body in the places you want to loosen up. If you want to loosen the fit of the entire garment, wear the jacket and periodically stretch your arms up and flap them around.

When the fit feels right, carefully remove the jacket and lay it on a blocking board. Stretch the jacket into shape and pin to the board with straight pins to keep the jacket in the shape you have chosen. Let air-dry overnight. Wear the newly loosened jacket as desired.


  • Use wool wash or hand-wash laundry soap if you don't have baby shampoo. You do not have to rinse the jacket if you use wool wash. Do not wring the jacket out to remove the water; just gently squeeze it. Never put wool into the washer or dryer, as it will be ruined.

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  • "The Knitter's Book of Yarn"; Clara Parkes; 2007
  • "The Knitter's Book of Wool"; Clara Parkes; 2009
  • "The Cleaning Encyclopedia"; Don Aslett; 1999

Photo Credits

  • matinee jacket image by hazel proudlove from Fotolia.com

About the Author

Sarah Emerald is the author of books and magazine articles specializing in crafts, family, business and the home, including Create and Decorate, Hilton Head Monthly and Crafts magazine. She has a Bachelor of Arts in English from a small private college in the southeastern U.S.