These shoes barely miss the mark for 5 stars only because I had a pair of LunarGlide 5s that I absolutely loved and were more comfortable. I've also noticed some tearing along the toes after just about 50 miles of running.<br /><br />First of all the good parts. These shoes do provide fantastic arch support for flat feet (mine are very flat). I run three 10Ks a week and I'm running some of best times yet (sub 55 minutes). Compare that to some &#34;normal&#34; running shoes that usually leave my feet absolutely numb and sidelined after about 1/2 hour. These shoes are also extremely light and air out quickly leaving very little moisture inside the shoe. I did not pay a lot of money for these at all. If I wear them outside, I can wear them all day and get more than 20K steps without blinking. Again, compare to a bad pair of shoes which basically guarantee I'll have to breaks or slow down to a crawl because of my flat feet.<br /><br />The bad? As I mentioned, I had a pair of Nike LunarGlide 5s which I absolutely loved. I could run almost as fast in those shoes, they are almost as light and almost as cheap. What they did have more of is more cushioning. That means that the Asics are much harder on my foot after an outside run on pavement. I experienced heel bruising for the first time in these Asics. However, running on a treadmill, the Asics outperform my Nikes by far.<br /><br />I wouldn't hesitate to recommend these shoes to runners with flat feet. Almost everything is perfect about these shoes except the cushioning, it's simply a very thinly cushioned shoe. However, if you run on a treadmill, track or path, you'll never notice the difference. These are my new go-to running pair, but the tiny rips in the fabric and my sore heels remind me there is room for improvement.