It's doubtful you'll be seeing these during the Paris Fashion Week Men's show next month - unless you're channel surfing and catch a glimpse of astronauts exercising aboard the International Space Station.
Which they do a lot, it turns out; two hours a day, every day in an attempt to stave off muscle wasting, bone loss and other not-so-wondrous side effects of living in zero-gravity.
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These space-age Earth Shoes are an attempt to get more information about exactly what is happening to the astronauts' bodies during their workouts on a resistive exercise device specially designed to operate in weightlessness.
The Advanced Resistive Exercise Device, or ARED, has proven its usefulness, with astronauts returning after long-duration spaceflights in better condition than previous crewmembers who didn't have the equipment available.
"There is still progress to be made in understanding the effects of exercise on bone and muscle health," Andrea Hanson, an aerospace engineer with NASA contractor Wyle Science, Technology & Engineering, said in a NASA interview.