Finding the right bathing suit is a pain in the derriere.

Marysia Swim brings grace to the process. Designed by former dancer Marysia Dobrzanska Reeves, the swimwear collection is part Anna Pavlova, part Esther Williams, with a little Valley girl thrown in. Made with ecofriendly Italian fabrics in Los Angeles, the line lets you reveal more or less in a palette of beachy nudes and brights.

Take first position in a ruffled halter one-piece or an elegant asymmetrical one-shoulder suit. Go high waisted with ballerina bottoms or low in a fully reversible bikini. Pair either with a bandeau top.

Cover-ups that go from surf to turf almost steal the show, like the silk shorts jumper with kimono sleeves and big pockets and the ’40s-inspired Avant minidress in melon and cream.

You might even want to pirouette in the svelte jersey V-neck dress.

But that would be tutu much.

Available online at marysiaswim.com.

Photo: Courtesy of Marysia