Bare arm, for two reasons:
1. Blue arms makes him look like Flipshot if I squint. I squint a lot.
2. Late 80's figure done modern in 4H awesomeness? White undershirt? Who WOULDN'T want him to look like Bruce Willis?!?!
Think about it, we've already got our 'Top Gun' homage in the aforementioned Flipshot remake- what if ALL the NA characters closely resembled celebrities from the late 80's- early 90's? Kayo sure seems to have a 'Die Hard' attitude in the comics...