The ankle strap heel is emerging as Spring 2013's must-have shoe, as it's showing up on a wide range of runways from J. Crew to Marni--and on fashion bellwethers, like French Vogue editor Geraldine Saglio (above), who sported gorgeously feminine Valentino ankle-strappers during New York Fashion Week. Here are other possibilities to ponder from Pour La Victoire, Alexander Wang, and Zara.