Weren't they down there for months? Sure they got some food but i never saw anybody shaving. Not only that but their uniforms are in perfect condition for the big fight. Were their unis cleaned and pressed?
Stubble doesn't grow in the dark.
Finally! A thread where I can reveal the origin of my username. t:
There was this thread in the Nolan forums where the so-called plot holes are brought up, points which are the same as the points being asked and discussed here, and like here, all these "plot holes" are easily debunked and given logical answers by the users there. And like here, the complaints get repetitive, and finally, one user, a defender of TDKR, started posting images that discussed minor things that are glossed over by the film but in the real world are inconsistencies, and started labeling them as "plot holes" just to shut up the repetitive critics.
This is only two of the images posted (meanwhile my username have two letters short of the original phrase because of the limitations of the username entry field):