Lyell (New York)

Four years after her tiny first collection, with celebrity fans including Michelle Williams, Natalie Portman, and Zooey Deschanel, designer Emma Fletcher finally brought Lyell into the spotlight last September with the line's first runway show. The vintage-inspired womenswear line bears silhouettes from the 1930s, such as a slinky blue bias-cut gown, through the 1950s, like a floral-print tap suit. The nostalgic, elegant clothes are constructed from heirloom lace and silks with an eye to details like bound or French seams, so not only do the pieces look like heirlooms, they'll be worth saving for future generations.