Jayne's orange "Fighting Elves" shirt is one of the more recognizable shirts from Firefly. The number "28" is prominent in the middle of the shirt, but the Chinese characters translate to "Fighting Elves."
More pictures after the break...
Another from Out of Gas, like the one above:
We first see this shirt in Safe:
And we also see it in War Stories:
A promotional/behind the scenes picture:
My Photobucket Album for Jayne.
Serenifly Costumes site for Jayne.