How to Taper Jeans

Co-authored by Andrea Beaulieu

Last Updated: December 10, 2024 References

As trends change, you might want to keep up with them without buying a whole new wardrobe. Tapering your jeans can completely alter their style, and you don’t have to be a seamstress to do it successfully. First narrow the lower leg and then make a new hem to convert your flares to a straight or skinny jean.

Part 1

Part 1 of 2:

Narrowing the Lower Leg

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Before you start making permanent changes to your jeans, put them on inside out and pull and pinch the excess fabric around the inner calf and ankle area that you’d like to make more narrow. Doing this while the jeans are inside out is best because you’ll need to alter the inside seams to taper the jean correctly.^{[1]
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Mark the area you want taken in. Using a washable fabric marker or chalk, mark small dots in a straight line where you’re pinching the fabric. These dots should start right below your knees and continue down to the very bottom of the pant legs.
- Give yourself just a little extra room around the thicker part of the calf. You don’t want to make them too tight to put on and take off.^{[2]
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After you’ve taken the jeans off, use sewing pins to pin together the fabric at the dots you marked. The pinning should simulate the pinching you did while you were wearing the jeans. ^{[3]
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Using a sewing machine, sew along the dotted lines that you created on each pant leg from below the knees to the bottom of the jeans. Once you do this, use scissors to cut off the extra fabric, including the old seams.^{[4]
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Andrea Beaulieu
Professional Tailor & Fashion Designer

Expert Interview. 1 May 2020.} Make sure not to cut any closer to your new seams than ¼ inch or ½ inch.^{[5]
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At this point, the raw edges that are exposed will need to be secured. In order to prevent fraying, sew the raw edges together using a zigzag stitch pattern. It may be difficult to make this look attractive, but that’s okay because this stitch won’t ever be visible while you’re wearing the jeans.^{[6]
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Part 2

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Making a New Hem

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1
Put your jeans back on and cuff your preferred new hem length. Put your jeans back on, but the right way this time. Your jeans should now be much more fitted from your knee down, but the very bottoms of your jeans are most likely still too wide. Cuff your jeans so that the old hem is where you want your jeans to end. This decision will depend greatly on exactly what kind of jean you’re aiming to create.
- Skinny jeans should end at the top of the ankle.
- Straight leg jeans should end at the bottom of your ankle, just before your foot.
- Ankle jeans should fall at the slimmest part of the ankle.^{[7]
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While keeping the jeans on, use sewing pins vertically to mark where you’ll sew, making sure that the vertical pin tops all line up evenly and are equidistant from the bottom of the fabric.
Take your jeans off and sew horizontal lines where your pin tops are. Once you’re done, you can cut the bottom of your pants off, leaving about a quarter or half inch of fabric below where you just sewed.
Just as you needed to create a zigzag stitch along the inside of the raw edges running vertically, you’ll need to do the same horizontally on the bottom of the jeans.^{[8]
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Flip right side in and iron smooth. Turn the edge back under so that you can see the original hem and iron over the bottom of the jeans to smooth and flatten them out.^{[9]
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- Iron along the seams to help them lie flat.^{[10]
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  Andrea Beaulieu
  Professional Tailor & Fashion Designer
  
  Expert Interview. 1 May 2020.}

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Question

How can I ensure the tapering will stay in place?

Andrea Beaulieu
Professional Tailor & Fashion Designer
Andrea Beaulieu is a Professional Tailor, Fashion Designer, and the Owner of MOORE, a Brooklyn, New York based storefront and apparel workshop for gender-neutral, contemporary streetwear as well as custom-tailored products. Andrea has over 20 years in the fashion design and marketing industries and specializes in pattern making, draping, and the construction of garments. She holds a BS in Fashion Design and Merchandising from the University of North Carolina at Greensboro.

Andrea Beaulieu

Professional Tailor & Fashion Designer

Expert Answer

Make sure the seams have been trimmed back so the excess fabric is removed. Once the jeans are sewn, press the seam with an iron.

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Question

On Step 3, "Pin the bunched material together," do I only pin the outside of the pant leg, or do I also do the inside?

T. Chinsen

Top Answerer

Unless the section below the knee is extremely flared, you are correct in that only the outside of the pant leg is reduced. The shaping of all pants is usually straightest on the inseam. The outer seam will have the curvature for the leg shape.

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Question

Can this be done without sewing?

T. Chinsen

Top Answerer

You can taper jeans with the use of good quality fabric glue. Be sure to apply sufficient glue to both sides of the seam to allow it to hold securely.

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