The team in charge of recovering China’s successfully returned lunar samples in Inner Mongolia wasn’t just futuristic because it was picking up Moon rocks — its members also wore passive exoskeletons to help trudge through the snow, the South China Morning Post reports.

“I would have been exhausted after walking 20 or 30 meters, but with the help of the exoskeleton, 100 meters or more was not a problem,” one of the team members told SCMP. He was tasked with carrying 110 pounds of gear through the deep snow with temperatures well below 0 degrees Fahrenheit.