Here's an Easy Trick to Make a Jumpsuit Bigger

If you have clothes that are too small, don’t discard them. You can use this trick to make them bigger. I’m going to show you how I took a jumpsuit that was too small and resized it to fit.

Tools and materials:

  • Tight clothing
  • Complementary fabric
  • Sewing machine
  • Scissors
  • Pins
How to make a jumpsuit bigger

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1. Fabric for expanding panels

You will need fabric to make your upsizing panels. I’m using a pair of old jeans for my panels. Find something that complements the item you’re upsizing.

How to make a jumpsuit bigger

2. Open the side seams

Now you need to open up the side seams. I had to be very careful opening my side seams because the pockets are attached to the side seams. You can use a seam ripper to open the seams, or just cut.

How to make a jumpsuit bigger

3. Measure and cut

To cut your panels, figure out how much fabric you need to add to get the right size. Split it in half to make one panel for each side.


Once you chop the panels to size, make sure they’re the right length too. I had to sew some panels together to get the right length.

How to make a jumpsuit bigger

Make yourself a nice, clean hem at the top of the panels where they will fit under your arms.  

How to make a jumpsuit bigger

4. Attach the panels

Line up the hem with the opening you made at the armhole. Sew, and repeat with all the remaining sides.


If you also have pockets on the side seams like me, just make sure to keep them open while you’re sewing.


Here's a before photo:

How to make a jumpsuit bigger

And here's an after photo:

How to make a jumpsuit bigger

Fixing clothes that are too small

Now you never have to worry about growing out of your favorite clothes. You can just upsize anything that gets too tight.


Give it a try and leave me a comment to let me know how it goes.


Next, learn How to Make a Jacket Bigger​ Step by Step.

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