Quince Italian Plunge One-Piece Swimsuit NWT XL black. This one-piece swimsuit is a triple threat: It was made to last, made with ribbed Italian-crafted fabric, and thoughtfully made with recycled materials. With a dramatic plunge design and moderate backside coverage, it feels comfy and secure thanks to compressive fabric and expert craftsmanship. Resists fading, pilling, and snagging, so you'll be wearing it for years to come.