More after the break...
More screencaps from Shindig:
Screencap from Our Mrs. Reynolds:
Screencaps from Out of Gas:
Some screencaps from War Stories. This is where I'm a bit fuzzy. I think this is a different shirt from the pics above, but it isn't the same as the brown shirt. But, here it is, just because.
Screencaps from Trash (the same as the one from War Stories, I believe):
Mal wears this with his Browncoat.
My Photobucket Album for Mal.
Serenifly Costumes site for Mal.