Whether she prefers to be under the sea or up where they walk and up where they run, your Disney enthusiast will love the Little Mermaid One-Piece Swimsuit from Disney Princess. A pretty floral pattern makes for a tropical one-piece swimsuit, and a perfect background for Ariel and Flounder. Pink mesh lines the straps for a touch of whimsical detail, and she’ll be ready to search for gizmos and gadgets in this UPF-rating 50+ swimsuit. Polyester, spandex.