For starters, leave the boy shorts at the store; they tend to make the derriere and thighs seem bigger. Also, pass on any prints and ruffles on the lower half that draw attention to the rear.

As for what works, a high cut in the leg can help heavy thighs look slimmer. An Empire waist and details at the chest (such as colorblocks, light colors or embellishments) also help draw the eye up and away from a heavier-set bottom.

And feel free to mix bikini pieces: Wear a print on top and a dark solid on the lower half, or white on top and black on the bottom.

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