I think NB is maybe the only good brand i can use now without sizing up .
when i wear size 11 in seemingly everything, my toes rub together besides NBs... maybe that isnt even true anymore though cause its been a few years since i had em now. maybe i just need to start sizing up overall...
I think it just comes down to arch height. You shouldn’t have to size up.
High arch: adidas, cons
Medium arch: Nike, New Balance, vans,
Low to no arch: es, Emerica, Etnies
That is my experience from trying on or skating shoes. Having flat feet really limits you, but es or Etnies is really all I can count on for comfort at this point.