I run in Saucony Triumphs. I am on about pairs #15 and 16 now. Before that I ran in Saucony Shadows. All of them have been good for about 500 to 600 miles per pair, although I will use older ones if I am on a soft track or treadmill. (I have a TM with a flex deck.) Lately I've been thinking about finding something lighter for races, but still want to stay with cushion shoes. Triumphs are fairly heavy at around 11 oz.