Founded in 2009 by Carl Cunow and Nathan Romano, Onia's range — from basics to beachwear — is designed for ease with clean-cut silhouettes and high-quality fabrics to create a reliable wardrobe for every day. Made from two-tone tricot, the Poppy bikini top is a bandeau style defined by a square center cutout, encased in contrast trim, and a removable halter-neck tie.