I purchased these running shoes after visiting Saucony.com and using their sneaker finder to determine the right shoe for me.  I'm flat footed and use these sneakers to run on a treadmill and to take group fitness classes.  As soon as I tried them on, I felt a difference in how well my feet were supported.  I also love these shoes because of their simple, yet attractive design AND because they're one of the few running shoes I could find in a purplish color for people with flat feet.