Runners go through a lot of shoes. According to the National Sporting Goods Association, 4.6 million pairs of running shoes were sold in the United States in 2012. So what to do with all those shoes once they have outlived their useful running lives, beyond downgrading them to casual shoes?
Hahahaha, as if! In fact, many of us could do with adding a pair to our rotation. Still, if you keep track of your mileage-per-shoe, you start to get a really good idea of when shoes run out, and we have plenty of other tips to help you use them as long as possible. A big one: reserving your training shoes for running can help extend their lives. Once they wear out enough that you can no longer use them for training you can introduce them into casual wear rotation.