Probably is. Ja tough one. The carbon fibre I'm picturing is the one on cars and bikes and that certainly won't bend when it's old, I'm hoping the shoe one is a more resin'y type so it won't splinter. Dunno, guessing now... 300 miles is a pretty poor effort if that is true though. I struggle to see how that's a sustainable model for the average user. Edit: actually, maybe not. Vaporflys only have a couple of marathons in them, alphafly I have no idea but probably similar, and there's no shortage of the former around. I suppose someone who can't afford to replace their carbon plated shoes often just doesn't buy them, and they still have a massive selection of 'hardier' shoes available. So ja, maybe it does make sense.
