Stay-fresh Clothing for space travel?

As Japan’s first long-duration astronaut, Wakata spent the majority of his mission carrying out experiments in the ISS.

He was also conducting an experiment of sorts as he revealed that he had been wearing the same pair of prototype underpants for a month to test their ability to withstand space life. "My space station crew mates never complained," he told an interviewer on Thursday.

Designed to be anti-static, flame-resistant, odor-eating, bacteria-killing, and water-absorbent, the underpants are part of a project aimed at making sure that future space travelers have optimal room in their suitcases.