What: The Cup, a classic elegant mule that is actually three shoes in one.
Why: The Cup is striking not for its shape but for its detachable heel back.
Each pair comes with three different plastic heel cups, which vary in color, height, and texture, allowing for endless stylish combinations. Just take the green (or black or white) cup off, slide the gold (or cream or olive) one up over the heel, attach the ankle strap, and voilà–a completely new shoe!
Since the design is part of their Spring/Summer 2008 Collection, it's not available online just yet but while you're waiting, check out the crazy (and pretty ingenious) footwear available on UnitedNude.com.
For some new ideas on how to freshen up your wardrobe this season, check out our Guide to Spring Shoe Trends.