I don't know about running, but I've been using the same pair of Nike Frees for about 3 years. I do cardio, weight lifting and bodyweight exercises for an hour

I don't know about running, but I've been using the same pair of Nike Frees for about 3 years. I do cardio, weight lifting and bodyweight exercises for an hour a day, 5 days a week. Then again, maybe I'm wearing them longer than I should. I often go years without buying any new clothes and still wear clothes from when I was in college 20 years ago.