I don't ever wear sneakers unless I need to but now I have to. I have really flat feet and need new sneakers because these chucks are not working out! For you flat feet, suggest any particularly comfortable sneakers that will work with me standing and walking for 7 hours straight. I am looking at puma shoes right now but am kind of clueless as to what shoes I should look for for my type of feet. Or does it really matter with sneakers? I'm telling you, I really don't ever wear them.