For step-by-step pattern video and Giveaway of this sample:
https://www.youtube.com/watch?v=YQTAivBEFzs

This is a one piece body or bathing suit depending if you use wool or cotton. Berroco Comfort is also a good option for a swimsuit because its 50/50 nylon/acrylic and creates a light, stretchy material.

The pattern is flexible and offers different suggestions as to how to tailor the fabric. There are also different options for the top border to create a deeper V neck. You can also make the bottoms without ties by connecting the front and back panels with mattress stitch.

In this sample, a “quadruple” crochet was used with 3 wraps for a large shell shape, but smaller stitches such as triple crochets can be used along with smaller circles in which they are worked to create a tighter, more closed/conservative fabric.