How to Make a DIY Swimsuit From Leggings - Super-Easy Tutorial

Quiana Unique
by Quiana Unique
5 Materials
1 Hour

Finding a swimsuit that you like can be frustrating. Luckily, you have more options than what you can find in the stores. Follow along with this tutorial and learn how to make a DIY swimsuit from leggings!

You can use this same pattern to make a DIY bodysuit, as well. It’s a super easy and fun project, and you’re going to love the results. So let’s get started!

Tools and materials:

  • Leggings
  • Scissors
  • Measuring tape
  • Pins
  • Sewing machine
How do I turn my leggings into a swimsuit?

These are the leggings I'll be using to create my DIY swimsuit.

Measuring and cutting the leggings

1. Measure and cut the leggings

To begin, I folded my leggings in half and made sure they were lying flat, with no bumps or wrinkles in the fabric. Then, I measured about 3 inches from the crotch and cut at a slight angle.

This created the bottom half of my swimsuit, which I cut in a boyshorts style. If you want bikini bottoms, I recommend starting the cut about 1 inch down from the crotch and cutting at a slightly sharper angle. And if you want regular shorts, you can simply cut them straight across.

Tucking and pinning the pant legs together

2. Tuck and sew the pant legs

Next, I took the two pant legs and laid them end to end, with the bottom edges facing each other, and the side seams lined up. I tucked about 1 inch of the bottom edge of one leg into the opening of the second leg.

Once I was satisfied with the positioning, I pinned and sewed them together with a straight stitch. 

Cutting the edges to make them straight

3. Cut the edges straight

After sewing the pant legs together, I neatened up the wider ends by cutting off the angled edges, leaving me with straight edges. 

Measuring and sewing the swimsuit center seam

4. Measure and sew the center seam

Next, I folded my leggings in half, then measured and sewed down 6 inches along one side of the fabric, starting at the wide end. This will be the center seam of the top half of the swimsuit. 

Assembling the DIY swimsuit

5. Attach the bottom and top of the DIY swimsuit

To connect the top and bottom halves of the swimsuit, I turned the bottoms inside out and laid them with the front facing up.

Then, I turned the top half so the wrong side was facing up, lined up the center seam on the top with the center seam on the bottoms, pinned the bottom edge of the top about 1 inch in from the top of the waistband, and sewed them together.

Depending on the size and cut of your leggings, you might want to try on the top and bottom together, and mark where to connect them before pinning and sewing.

Making the swimsuit tie straps

6. Cut the tie straps

From the excess fabric, I cut two long strips, each about 18 inches in length. These will be straps that tie in the back of the swimsuit.

Marking where the straps go on the swimsuit

7. Mark where the straps will go

Next, I tried on the swimsuit. I marked the places on the sides of the top that were a bit loose and flappy, where I wanted to connect the straps. 

Folding the strips before sewing them

8. Fold and sew the strips

Then I folded the strips in half lengthwise and sewed them down along the open edges. 

Attaching the tie straps to the DIY swimsuit

Once the straps were ready, I sewed them to the points on the sides of the top that I had marked previously. 

DIY swimsuit from leggings

DIY swimsuit from leggings tutorial

And that’s it! I am so happy with how this turned out, and I absolutely love the pattern and colors.

Swimsuit made from leggings

I hope you enjoyed my tutorial on sewing a swimsuit made from leggings. I’d love to hear what you think of this idea. 

Suggested materials:
  • Leggings
  • Scissors
  • Measuring tape
See all materials

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