It’s a feat (or feet, rather), to be sure, and likely one that won’t be solved as fast as you can run around the block. The footwear industry as a whole has some pretty dirty practices en-tread-ed in it, hence our recent ethical shoe brand kick into eco friendly sneakers. Now we’re shifting focus and covering some serious ground on sustainable running shoes. The most ethical running shoes are those able to achieve foot-healthy cushioning with sustainable (and ideally) plant-based materials. And because this is an Olympic-level challenge, we really admire shoes crossing both those ribbons.