Sunscreen—as well as a jiggle-free body—may be the most obvious pairing with your favorite bikini, but this spring, swimwear makes a nice match with less utilitarian bedfellows. Long the go-to for elegant maillots, Eres is introducing a trio of limited-edition nail polish hues: Yellow Soufi, Rose Bengale (below, right), and Brown Damas, which conveniently correspond with three of the label’s suit colors.