The shoe of the 20th and 21st centuries, the sneaker epitomizes functional footwear, as it’s designed for active endeavors—from sports to commutes. But in the world of fashion, this rubber-soled shoe has quickly soared to the s ame style ranks as stilettos and sandals. Once only appropriate for athletic activities, sneakers can now be spotted paired with gowns at red-carpet events and strutting down runways