I read somewhere once that you should get new trainers (you know, sneakers/joggers/sandshoes/runners) every 3 months if you exercise regularly. Apparently if you don’t your shoe will no longer provide you with the support and shock absorption you signed up for. You’ll be ‘at risk’ of all sorts of things. I’m wondering whether that was purely marketing hype put out by a sports shoe company, but regardless, it stuck with me.
Every 3 months I should be shelling out around $150 for a new pair of trainers.