Originally Posted by Bowgie

My answer is not specific to Emirates, and I am sure the OP will not have a problem with wearing shorts onboard.

I am also aware that in Bermuda, shorts qualify as business wear.

Nevertheless, I would caution the OP that in many parts of the world, for the native population, shorts are not proper attire unless one is either --

1. on a beach, or
2. happens to be a little school boy

So, yes one can "get away with it", but one may find himself the object of snickers from fellow passengers.