A collaboration between childhood friends Monica Paolini and Sean Monahan, Sea NY got its start out of a downtown loft-come-studio-come-showroom in 2007. Best known for swingy shapes and utility-chic staples, the duo’s designs are marked by feminine twists and playful touches—eyelet, ruffles, ruching, pom-poms. Each piece is designed to be mixed and matched with whatever you already own.