Biodegradable shoes, sounds great if they don't rot while you walk

I presume that the time scale on these Brooks Trance 8 runners biodegrading is along the lines of years (as opposed to decades) and not months. Wouldn’t want them sloughing off while you run. It’s a nice move towards waste reduction, but as usual they carry a “Conscience Tax,” in this case bringing up the price to $140.

I know you ballers pay more than that for your kicks regularly, but for a bill and a half you could buy six or seven Super Nintendos. They’ll never biodegrade.