More pictures after the break...
The above is a promo pic as are these:
Screencaps from Serenity:
This shirt was put up for auction a number of times at the Propstore:
He does wear this particular costume with his movie Browncoat, shown here.
He also wears the same suspenders and boots with his Maidenhead costume and his Serenity End costume.
My Photobucket Album for Mal.
Serenifly Costumes site for Mal.