Originally Posted by teagone
Best answer. Though, I wouldn't mind it if somehow the narrative requires Clark to fit his suit with armor, a la Jor-El before he took on Zod and his minions. The reason would have to be a significant enough to answer any question of why the Man of Steel would don his father's Kryptonian armor though, and the only ones I personally can think of is when either Doomsday or Darkseid show up.
The only...barely acceptable reason I could think of, is if it somehow was a barrier to kryptonite, but still not buying it.