It’s safe to say no one wears Ugg boots because they’re stylish or fashionable. Rather people wear them for their comfort and warmth. And in the middle of a Chicago winter, it’s easy to see why so many women (and men) are slipping their feet into the fur-lined boots. But it’s not just warmth-seeking Chicagoans and Mid-Westerners who wear these shoes in public–celebrities too, even in the warm climate of California, have been spotted in Uggs. They may not be the most fashionable (though they have new designs with buttons or ties down the side) but at least they’ll keep your toes warm.