Help!! I need white leather shoes for nursing clinicals!

Hey guys, I am starting nursing clinicals in a couple of weeks and I'm looking for opinions on what is a great comfortable shoe. They must be all white(or mostly white), and all leather. Comfort is my main concern since I'll be having 8-12 hour shifts. I had in mind the air max 90s but I would like your opinion on what you think is the most comfortable shoe. I would like Nike, but if you have another brand in mind, I'm considering any brand! Thanks again for any help.

Air Monarch aka The People's Champ shoe

i think this one will suitable for clinic duty environment, lunar force 1 fuse game royal 2013 released. it's lunar sole so it's very comfortable but the upper is not leather material