For a girl as active as she is, she needs swimwear that's durable, built-to-move, and totally play-proof. Athleta Girl stepped ... The Reversible Festival Tie Dye Bikini Top ($32) and matching ...

Comfort, meet cute. For ultimate mobility, turn to the Run the World 3" Short. Your girl will come for the fun and eye-catching tie-dye pattern but stay for the light-as-air fabric, all-around ...