How to Shorten Jacket Sleeves

Co-authored by David Pew

Last Updated: January 2, 2024

Shortening the sleeves on a jacket can take it from ill-fitting and sloppy to tailored and chic. It is fairly easy to change the length of your sleeves, but you will need some basic sewing skills and a sewing machine. You will need to measure to find the new length, mark your fabric, cut it at the desired length, and then hem the sleeves to finish them.

Part 1

Part 1 of 3:

Measuring the Sleeves

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1
Try on the jacket to determine the new sleeve length. To get the best possible fit, put the jacket on and identify where you would like the sleeves to fall. It is a good idea to bend your arms and hold them straight at your sides to see where you are most comfortable with the sleeves ending in these positions. You may want to choose a midpoint measurement between these 2 spots.
- For example, if you want the sleeves to end right at your wrist, but they are too short at this length when you bend your elbows, then you might need to shorten them so that they end about 0.5 cm (0.20 in) below your wrists instead.
2
Mark the sleeves where you want them to end. Mark the position in a few spots around the sleeve with a piece of chalk. Then, remove the jacket and connect the marks into a solid line going around the sleeve. ^{[1]
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Expert Source

David Pew
Professional Tailor

Expert Interview. 5 January 2021.}
- You may want to use a ruler to help you get a straight line and to ensure that all of the marks are the same distance from the end of the sleeve.
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3
Measure 2 in (5.1 cm) from the marks you made. The spot you identified is not where you will need to cut your jacket sleeves. You will need to leave room for the seam allowance, so measure 2 in (5.1 cm) from the first line going towards the end of the sleeve. Mark this spot in a few places around the sleeve using a piece of chalk. Then, connect the marks in 1 solid line. ^{[2]
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David Pew
Professional Tailor

Expert Interview. 5 January 2021.}
- This will leave a little extra room in case you need to lengthen the sleeves again in the future.

Part 2

Part 2 of 3:

Cutting the Sleeves

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1
Use a seam ripper to pull out the stitches along the hem and seam. Rip the stitches by running the hook section of the seam ripper through the stitches on the hem and seam of the jacket. You will need to remove the stitches before you start cutting. ^{[3]
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Expert Source

David Pew
Professional Tailor

Expert Interview. 5 January 2021.} This will detach the sleeve lining from the sleeve fabric, which is necessary for hemming the sleeve properly. ^{[4]
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Research source}
- Be careful not to rip the fabric as you do this!
- If the shirt has mitered corners around the buttons, you'll need to open that up, as well. ^{[5]
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  David Pew
  Professional Tailor
  
  Expert Interview. 5 January 2021.}
2
Slide the lining fabric up and out of the way. To avoid cutting through the lining fabric, move it up into the sleeve so it will be out of your way. Cutting the lining along with the jacket's exterior fabric may affect the fit of your jacket.
- You may want to pin the lining up inside of the sleeve to ensure that it will not get in the way when you cut the outer fabric.
- It's a good idea to press the pieces of the sleeves to ensure you have nice clean edges to work with. ^{[6]
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  David Pew
  Professional Tailor
  
  Expert Interview. 5 January 2021.}
3
Cut the outer fabric along the second line you created. Cut straight along the line all the way around the sleeve using a pair of sharp scissors. Make sure to cut the outer sleeve fabric only.
- Repeat the same process for both sleeves.

Part 3

Part 3 of 3:

Hemming the Sleeves

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Pull down the lining so that it extends past the new end of the sleeve fabric. If you used pins to hold the fabric back, then take out the pins first.
2
Cut the lining just a little longer than the finished sleeve. Trim the jacket lining so it's just a little longer than the finished sleeve will be. This will be just a little shorter you cut the sleeve fabric to, since it was cut to account for the seam allowance. ^{[7]
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Expert Source

David Pew
Professional Tailor

Expert Interview. 5 January 2021.}
- If you cut the lining to the exact same length as the finished sleeve, it will pull and make the sleeve look puckered.
Ensure that the jacket lining and outer material are lined up. Then, fold the outer material at the end of the sleeve over the lining fabric towards the inside of the sleeve. This will hide the raw edges of the lining and outer material.
Insert the pins going perpendicular to the end of the sleeve so they will be easier to remove as you sew. Place a pin about every 5 cm (2.0 in).
5
Secure the folded fabric with a straight stitch. Set your sewing machine to the straight stitch setting and sew all the way around the edges of the sleeve. Make sure to use a thread that matches the color of the jacket, such as black thread for a black jacket. Position the stitch about 3 cm (1.2 in) from the folded edge.
- Remove the pins before you sew over each area to avoid damaging your machine.
- You can also sew the sleeve by hand, if you prefer. ^{[8]
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  Expert Source
  
  David Pew
  Professional Tailor
  
  Expert Interview. 5 January 2021.}
6
Backstitch by 5 cm (2.0 in) when you reach the end. To secure the final stitches, press down on the lever on the side of your sewing machine and hold it while still applying gentle pressure to the pedal. This will reverse the direction of your sewing machine. Sew for 5 cm (2.0 in) and then release the lever and sew back to where you started. Trim off the excess threads and you are done with the sleeve!
- After you finish sewing the first sleeve, repeat the process for the second sleeve.

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Question

How much seam allowance should you leave?

David Pew
Professional Tailor
David Pew is a Professional Tailor and the Owner of Sew Generously based in Seattle, Washington. With over a decade of experience, David specializes in bespoke tailoring and alterations. He uses his experiences, skills, and eye for detail to produce the highest quality of products.

David Pew

Professional Tailor

Expert Answer

When I'm shortening sleeves, I typically leave about 2 inches of seam allowance inside the sleeve and the lining. That way, the sleeves can be lengthened again later if they need to be, which is especially helpful if the alteration is for someone young.

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Question

Do I need to add interfacing?

David Pew
Professional Tailor
David Pew is a Professional Tailor and the Owner of Sew Generously based in Seattle, Washington. With over a decade of experience, David specializes in bespoke tailoring and alterations. He uses his experiences, skills, and eye for detail to produce the highest quality of products.

David Pew

Professional Tailor

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If you shorten the sleeve past the point where the interfacing is, you'll need to add interfacing. If the edge of a sleeve isn't interfaced, it will look floppy, rather than crisp.

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Question

Why do you cut the lining longer?

David Pew
Professional Tailor
David Pew is a Professional Tailor and the Owner of Sew Generously based in Seattle, Washington. With over a decade of experience, David specializes in bespoke tailoring and alterations. He uses his experiences, skills, and eye for detail to produce the highest quality of products.

David Pew

Professional Tailor

Expert Answer

The lining of a sleeve should always be about an inch longer than it needs to be. Otherwise, when you move around, your sleeve will crumple up, because the lining will pull on the sleeve.

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Choose a heavy-duty needle for thicker jacket fabrics, such as denim, leather, and suede. A larger needle size indicates a thicker needle. ^{[9]
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Things You'll Need

Chalk
Ruler
Scissors
Pins
Sewing machine
Thread

[1]

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David Pew
Professional Tailor

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

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How to Shorten Jacket Sleeves

Steps

Measuring the Sleeves

Cutting the Sleeves

Hemming the Sleeves

Expert Q&A

Video

Tips

Things You'll Need

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