Czech designer Maria Nina Vaclavek came up with her striking Rectangle shoes — resembling early Margiela — through a novel approach. "The caveman hunted down an animal, skinned it and wrapped the leather — still raw and warm — around his foot, tightened it with bast," she says. "The leather adapts to the shape of the user's foot. I found this technology very interesting and decided to work with it further." They may look restrictive, but she says they're quite comfortable. They are open-toed after all. Plus, could anything be less comfortable than the modern stiletto?