This East Village haven for thrifty fashionistas is bringing its discounted designer duds to Brooklyn. Like the Manhattan shop, the Park Slope location carries a diverse selection of gently used designer threads, shoes and accessories for both sexes, priced from $25 to $15,000. Owner Lizbeth Murphy and her husband, Ben Malik, have been in the luxury consignment business for a collective 18 years, and they work with an impressive 400 consigners. Ladies can scoop up a BCBG neon maxidress ($125), a Prada metallic pleated skirt ($95) and a Rebecca Minkoff chain-strap carryall ($250). Men can nab a sleek Marc Jacobs blazer ($150), John Varvatos jackets ($200) and funky Dior oxford shirts ($55). Social-media addicts can scope the boutique’s constantly updated Instagram feed (@elevencboutique) for pictures of the latest merchandise, allowing you to snatch up your favorites before they even hit the sales floor.