Your running shoes are made to last between 300-500 miles of running. A quick and easy test of shoe wear? Set your shoes side by side on a table or counter. If your shoes no longer stand straight up and down, OR if it's easy to bend your shoes backwards toe-to-heel, it's time for a new pair. TIP: Did you know you can track your shoe wear with your Running Log (Trax Log) here on Traxee.com?