The swimsuit is the main part of a pool outfit. A good swimsuit is not only about style. It is about fit and comfort. If the swimsuit is too tight, you will feel uncomfortable. If it is too loose, it may move around in water. For most people, a simple one-piece or a clean two-piece is the easiest choice. A one-piece often feels secure and gives a smooth look. A high-waist two-piece can also feel secure while still looking stylish. If you want more coverage, choose a swim dress, a longline top, or a rash guard style. If you want a more trendy look, choose a simple bikini with a clean color like black, white, brown, navy, or soft pastel. The best rule is to choose a swimsuit that you can walk, sit, and swim in without pulling it every minute.
A simple example is this. If you plan to swim a lot, a secure one-piece and sporty sandals will feel best. If you plan to relax and take photos, a flattering bikini with a nice cover-up will look great while still being comfortable