Why Older Running Shoes Probably Won't Last, Even If They Haven’t Been Worn
by Beth Skwarecki from Lifehacker on (#5MXZD)
You've probably heard that you should replace your running shoes when the cushioning wears down, which tends to be after 300 to 500 miles according to most manufacturers. But it turns out there's another problem with old shoes, even if you haven't been running in them.