
Poor Bob Lowery-- I liked him as an actor in the 40s-- he was in several Charlie Chan films, and he even had a good guest spot on SUPERMAN-- but rumors have persisted that he was the second choice for the '49 Batman and he wasn't as tall as the actor who was originally cast-- having no budget they didn't refit the suit so the ears flop and the chest emblem sits low on his stomach.
I don't know how true the whole thing is, but I know his stuntman looked a lot better in the suit that he did (check the episode where he climbs on the train).
With the discussion of the Adam West logo being too low, I tried a quick composite to see how Lowery's costume looks if we tighten the ears and shrink and raise the logo;

I think it looks pretty good. I didn't do anything to the ears other than straighten them. They are the size they already were-- and I added some capsules to the belt-- amazing how the logo moved up makes him look more trim.
Well, kids, this is why I buy my clothes from a tailor.