If you are an adventurer, you know the anxiety that comes with running out of water in the middle of a tour. Fontus, a startup with its headquarters located in Vienna and a development site located in California, has developed a self filling water bottle that allows you to plan your adventures without having to worry about heavy water loads or where to find the next river or gas station to get your water supply. So how does it work? The bottle is designed to capture the moisture contented in the air, condense it and store it as safe drinking water. We all know the basics of extracting water out of the atmosphere: A surface that has a lower temperature than the atmosphere makes the humidity, contained in gas form in the air, condense and form little water drops. In Fontus a small fan draws the air from the surrounding environment, runs it through a special filter and presses it into the condensation chambers. A series of small coolers powered by solar mats bring the moisture contained in the air to condense on special surfaces. The resultant liquid water then drops into the bottle's main body and is stored. Should you have concerns about still or stilled water, the lower section of the bottle is designed to carry little capsules, which dissolved in the harvested water, iniciate a process of re-mineralization.

Fontus bottles come in two possible configurations, the Fontus Airo, which can be clipped to a backpack and fill your bottle while you are hiking, and the Fontus Ryde, which is especially designed to fit your bicycle. The efficiency of the fontus bottles depends of course mainly upon the relative humidity of the air and the temperature. The higher the humidity and the temperature, the faster will the bottles fill themselves up. The bottle holds up to 0.8 liters and you can even charge your phone with an USB connection on the solar mat.

Pledge $165 or $200 and you can get an early-bird Fontus Ryde or Airo, respectively.