Created in collaboration with fashion blogger Natalie Off Duty, this monokini takes sultry inspiration from Cuba's tropical heat. The flirty design conceals and reveals with a plunging keyhole neckline and bold side cutouts that show off your midriff. As an added bonus, built-in UPF 50 blocks 98% of sun's rays while you bask on island beaches. Brand: ONEILL. Style Name:O'Neill X Natalie Off Duty Isadora One-Piece Swimsuit. Style Number: 5368682. Available in stores.