Has Batman ever been slim/skinny?

Hey guys! I'm thinking about cosplaying Batman pretty soon, and I'm wondering, has he ever been slimmer or more skinny, kinda more like Spider-Man or The Flash? I have a more lean build, not nearly as much mass as Batfleck and I want to make sure the suit I go with suits my body type, now obviously there's Batman Beyond but I would prefer the more traditional Batman.

Here's one of my recent workout progress pictures for reference: