World’s fastest “shoes” increase walking speed by 250%

Pittsburgh-based startup Shift Robotics has invented “shoes” that let you walk 250% faster without expending any extra energy — and you can own a pair of the speed-boosting kicks for $1,400.

Slow walk: Traveling via a bike, skateboard, or scooter is typically better for the environment than taking a car, and if you live in a place where traffic congestion can turn a 5-minute drive into a 20-minute trek, it can even be faster.

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