My sister called me while she was strolling around Nantucket the other day to provide me with--what else--a live-on-the-ground fashion report. "Everyone is wearing ballet flats instead of sandals this summer," she noted. "With shorts, dresses, jeans--they are definitely the shoe of the season!" With that confirmation, I set out to find a pair (or two) and will soon be slipping into these classic and these colorful .