Spring-Loaded Running Shoes
If you're aiming to turn yourself into some sort of marathon-running human pogo stick, then your dreams just came true. Introducing spring-loaded running shoes, the sneaker that probably doesn't need to exist but does anyway.
Straight from French footwear design studio Enko, these kicks use a spring on the sole to store energy when your foot hits the ground and release it when you push off, supposedly giving you a more powerful stride.
If you want to make them a reality, fund their Indiegogo campaign, where $390 will score you a pair.