A design student in Vienna created a water bottle that collects moisture from the air, and turns into water as you bike.
How does it work? As the bike moves forward, air is pulled in, and then slowed and cooled as it moves through that upper chamber. The moisture from the air then condenses into water and drips into a bottle. The creator claims that in hot and humid weather it can produce 0.5 liters of water in an hour.