Well, OK, we're not sure Birkenstocks were ever actually considered cool...unless you count that time in the mid-2000s where everyone in the ninth grade was rocking a pair of their eponymous clogs.

Either way, Birkenstocks, and really, the whole ugly shoe thing in general, are having their moment in the (fashionable) sun right now.

Ever since Parisian fashion label Celine sent clunky (and in some cases, furry) sandals down the runway last fall during the spring/summer 2013 shows, the fashion industry seems to have taken an interest in the bulky, sturdy, made-for-comfort German shoe. And by fashion industry, we really mean Ashley and Mary-Kate Olsen, both of whom been spotted in Birkenstocks over the past year. They're especially fans of the Gizeh style, a simple thong sandal that comes in a variety of interesting, non-sensible colors - like a cool silver metallic, or a bright patent leather orange.

We're not saying we're converts, but we don't necessarily hate this trend either. Want to decide for yourself? Click through the gallery to see some of our favorite picks from Birkenstock's summer collection -- and don't forget to tell us what you think in the poll below!

Would you wear a pair of Birkenstocks?