I love when this happens, I actually made these concepts using
Phil-cho's original work. He makes some great art like this, it looks an authentic Character sheet for an animated series. I've actually been toying with this more since I lost my original files for fun so I wasn't going to post them but I figured why not.
For Batman I didn't change the New 52 look much I just feel adding some black in the belt ties the uniform together. I picture the material being similar to the Arkham Games a bodysuit with a mesh layer, design to take impacts, with a tough looking fabric covering it. The cowl, gloves, and boots are more armored thicker. For symbol I could go either way. I prefer the one on the left but the others do add nice contrast.
For robin I picture the same thing in terms of material as Batman but leaner and more acrobatic. I love the idea of Robin having a hood, though he wouldn't wear it much, I see it as an optional feature the he only wears when it's cold, raining, wants to look more intimidating, or if he's near someone who might recognize him.