Feathers Flights // Sewing Blog: How To Install Elastic In Flat Front Pants


How To Install Elastic In Flat Front Pants

I know there are tons of sewing tutorials about installing elastic, but figured out a way that I love. It's very similar to installing elastic on swimsuits. (Maybe that's why I love this so much, because I LOVE making swimsuits!) I thought if I loved this method so much, there might be someone out there that can benefit  too!
A half-finished pair of pants/shorts/skirt
Sewing supplies*

1. Finish the top edge of your pants, either serge, zigzag, or fold over.
2. Try the half-finished pants onto you or your child. Fit the front part of the pants snugly and then measure the distance needed around the back. My son's is 6".
3. Add 1/2" to the measurement and cut that from elastic. Wider elastic is better to use.
4. Sew the elastic ends at the side seams. It's alright if stitching shows because it will be folded over.
5. Find the center of the elastic and pin it to the center back of the pants.
6. Stretch and pin until the elastic is distributed evenly across the back.
7. Sew down the center of the elastic with either a serpentine or a zigzag stitch from side seam to side seam stretching as you go. Don't worry, this stitch will only be seen on the inside of the pants.
8. Fold the waist of the pants down encasing it in the elastic between the layers of fabric. Pin at center back and side seams. Distribute elastic evenly across the back.
9. Sew all the way around the waistband 1/8" from the elastic. (My elastic was 1", so I sewed 1 1/8" around the waistband.) You will have to stretch the back as you sew. Feel free to add multiple lines of stitching on the back over the elastic; I find this gives a great manufactured look.
How do you like installing elastic?


  1. That looks really easy! Thanks for sharing this technique! :) Lisa

  2. I really like this tutorial - thanks for sharing it. :)
    I have usually tended to make a casing and thread the elastic through it. quick and easy, but it isn't always the best way and I am sometimes unhappy with the finish. I think I will put in the extra time to achieve the better finish and do this way.


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