Brooklyn-based designers Hayden-Harnett are known for their slouchy leather handbags and line of accessories. The duo behind the label, designer Toni Hacker and her boyfriend Ben Harnett, have recently opened a boutique in Greenpoint, Brooklyn, which sells a retro-inspired women's wear and jewellery. We particularly like the look of the line of swingy trench coats. The line was only launched in 2005 but already has a loyal following in the US and Japan.  HH Design: Shop, 211 Franklin St., at Freeman St., Greenpoint, Brooklyn, Phone (718) 389-1750.