Best Shoe for a Flat Footed Retail Worker Dealing with Lots of Standing?

[mcho24]

I'm aware of zoom structures and lunarglides being top quality picks, but I'm not too into the aesthetics of them. Out of the following, which is the best pick for me? I'm severely flat footed and I've found all 3 of these for ridiculously low which is why they're my only options.

Flyknit Lunar One

Flyknit Racer

Nike Free TR 5.0

Thanks in advance. I've been suffering from immense back pain and foot pain in my previous jobs so I really want to make sure this one sticks.

 

[jessiev510]

I have flat feet also and but some insoles and tried it all and they still hurt.. I wore a pair of adidas ultra boost Saturday for 6+ hours and did a lot of walking and they felt so good and I had no paid in my feet.  Might want to check them out.