At this point you should have a fully lined swimsuit that has elastic every where except the front neckline. We left that open so that now you can try the suit on and place the bra cups exactly where you want them. Doing it this late in the swimsuit making process helps to make sure they are correctly placed and won’t end up in some weird position.
How to Insert Bra Cups into Swimwear - don't muddle around. Here's
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