"These shoes tend to last 6 to 8 months depending on how much you’re walking on a daily basis and if you participate in outside sports. You want to be cognizant of when you buy them. I encourage my patients to label the inner aspect of the shoe, under the tongue, including the month and year when purchased," Haller says. It's also a good idea to periodically check the shoe's tread, which is a good indication of when it needs to be replaced.