Size up for a looser, more relaxed fit. Size down if you prefer a snug, minimal-coverage feel. Most of our bottoms have adjustable side ties, so a size either way still has room to fine-tune.

Generally yes, but fuller-coverage styles (one-pieces, underwire tops) can run slightly closer to true size than our minimal triangle styles. Check the product page notes if you're unsure.

Go with the size that matches your bust and hip measurement rather than your waist. Swimwear is designed to stretch slightly at the waist.

A fuller-bust fit on a size S frame: same waist and hip as an S, with extra room through the bust and underbust.