I purchased this shoes to try them as my old Adidas were ready for the dump trip.
These AVIA look so nice, and they feel nice. I use them mostly at the gym. But one day I decided I would use them for a full day: bad idea. They do great for short periods, but once you get to wear them for more than 4 hours, you start to be sorry.
Not sure why, but as long as I don't wear them for over 3-4 hours they are just fine.
Size, yes they run a little small, but an extra 1/2 number will do.
The mesh they are made of makes them stay cool and your feet feel cool, once again, as long as you don't wear them for over 3-4 hours.
Good choice for the money you pay.