Things You'll Need:
- Bathing suit elastic
- Coordinating colored thread
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Step 1
Buy bathing suit elastic. This elastic withstands the wear and tear of the water, swimming pool chemicals such as chlorine and the damaging effects of the sun. Bathing suit elastic comes in either clear or cream colored.
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Step 2
Decide on elastic placement. If you want the elastic covered, simply fold the edge of the suit over the elastic and pin it in place before sewing. Once you've pinned the elastic on, move on to Step 4. If you don't care to have it covered, move on to Step 3.
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Step 3
Put the elastic on the inside of the fabric of the bathing suit top. Start with the bottom portion of the bikini top and line the elastic up evenly with the bottom edge.
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Step 4
Sew the elastic on to the bikini top. Set your sewing machine to surge and slowly begin sewing along the bottom edge of the bikini top.






