I bought these pink swimsuit bottoms in a size 4 (I'm 5ft 5in; 115lbs; usually a size 0 or 2). I took the advice in the comments to go up a size - it worked well and I could probably even go up a size and get more coverage in the back without sacrificing the waist. Love the color (as seen in the photo) and the quality is great too (has a lot of stretch without being too flimsy).
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