If you live in, or have ever visited any of the world's largest cities, you know that relying on public transportation can be exhausting. Even when it's not raining, or snowing, or 110 degrees, being on your feet all day as you walk around town and wait for the subway is rough.

Fortunately for urbanites everywhere, the clever fashionistas at we-make-money-not-art have devised a solution: the Self-Sustainable Chair.

The dress is comprised of 7 trashbags, 2 foot-pumps and a pair of slippers. As you walk, air is gradually pumped into the inflatable bubble at the back of the dress, allowing you to sit on it. However, your weight will slowly deflates the bubble, forcing you to get up and walk again.

According to the creator, "The balance between exercise and rest would be maintained by wearing this suit. The purpose of this project is to transform the humdrum experiences produced by routine walking commutes into an amusing interactive performance."

What an awesome way to get around the city.

[via Popgadget]