The lotus swimsuit is a made to measure and size inclusive pattern, this means you measure yourself and the follow the pattern instructions.
You will need any type of 4ply (fingering weight) cotton yarn or any type of bikini yarn such as Alize stretch, nako comfort stretch or any other type of stretch bikini yarn. I used roughly 510m of yarn for the sample size (XS-UK 6). You will also need a 2.5mm crochet hook to meet gauge and some elastic (between 2-8mm).
The pattern is an advanced beginner level; however, I have provided detailed steps and pictures throughout.