Sustainable and swim-ready, our Madewell Second Wave collection comes in feel-good recycled fabric. A fresh take on a tank style, this square-neck one-piece has a built-in shelf bra, cutout back and flattering legs-for-days cut. Light support. Minimal coverage. 82% recycled nylon/18% elastane. Do Well: recycled from preconsumer waste that would otherwise go to landfills. Machine wash. Import. Select stores.