Need help identifying helmet I cannot identify this minifigure helmet I have. It looks like some sort of a biker helmet.

This piece came in a bulk of parts, which are LEGO, however not entirely sure this is legit LEGO piece. It fits snugly onto minifigure head, however doesn't have any usual LEGO marking. The inside has just a number "3". Which is the reason for clone-brands tag. I did check on Bricklink, but I'm not very familiar with minifigure items.
This appears to part# 30171 Minifigure, Headgear Cap, Aviator



In black it appears in 118 sets.

However, I checked with my helmet from Robo Pilot 
and that one has a LEGO marking on the inside, yours could be a older mold though.


Edit, I also have one with a 7 marking inside , no logo, so I would assume it is from an older mold.