So I thought I should buy the Nike 'Back to the Future' shoe as an investment

[slayer202]

first pair at live auction sold for like 25 or 35 grand

 

[drebo]

wtf how does toe heel even work?

It's your natural step when you sprint. It's also the natural step for a biped...hence why the balls of our feet are much more padded and sturdy than our heels.

Try running barefoot, sometime. You'll notice, even when you're jogging, that your step is considerably different than when you wear these massive shoes with ridiculously thick soles.

 

[Matthiasa]

I use heel toe when walking and then just the toes and ball of my feet if doing anything faster.