Second Wave Square-neck Tank One-piece Swimsuit

Our Madewell Second Wave swim collection has a built-in feel-good factor—the fabric was made using recycled material. A fresh take on a tank style, this square-neck one-piece has a built-in shelf bra, a low back and a flattering legs-for-days cut. With sizes running from XXS to 3X, it's an "everyone needs this suit" kinda deal.