The Ones Who Margot One Piece Swimsuit Madewell Margot One Piece Time Out Clothing Belle The Label Margot One Piece Swimsuit One piece swimsuit MARGOT LINGERIE ONE PIECE (CRUISE EDITION) (final sale) Robin Piccone. Margot one piece is a timeless classic swimsuit that has an elegant and flattering square neckline front and back. Self lined in the ultra soft Embodee fabric with high shaping power, Margot is like the little black dress of swimsuits. It will be a core part of your swim wardrobe for years to come. Luxury fabric sustainably made in Italy. Margot fits small, size up if between sizes.