 at which point that filtered water then returns to an in-suit drinking bag. Currently, astronauts do have an in-suit drinking bag. It contains less than a liter of water to drink for spacewalks that can last up to 12 hours, and it has been a source of complaint for astronauts over and over and over again. So we've redesigned it so it can hold more water, given the, I suppose, bladder conditions of each astronaut.