It Austrian designer Kristof Retezár’s newest creation, a self-filling water bottle, could be a game-changer for bikers and water-scarce countries alike.

 

The “Fontus” solar-powered water bottle is meant to attach to a bike frame. Depending on how hot and humid conditions are, it can generate up to 17 ounces of water by absorbing humid air as it passes over a two-piece mechanism that converts it into cool, drinkable water. Right now it’s also competing for a James Dyson Award, the Academy Awards for design engineering.

 

It works a little bit like this, CityLab reports:

 

When a cycle is in motion, air is funneled into the top holster and distributed over a “condensing structure.” A solar-powered cooling element then turns it into moisture that drips down a pipe into a detachable water bottle.