When Jay Z announced that he and Beyoncé were embarking on a 22-day vegan challenge, he may not have been thinking about the impact the diet might have on their high-fashion wardrobes. But after a recent outing to LA's Cafe Gratitude, what Beyoncé wore to lunch, not what she ate, has become the biggest focus. That's because Bey's fur-collared Christopher Kane coat (the same one pictured above), made with real fox fur and glossed leather details, isn't exactly vegan. But we ask you, does it have to be? Surely there are vegans who embrace an entirely plant-based lifestyle, but just because you eat like a vegan, do you have to dress like one?