I would work the commercial licence argument, and also the fact that you are uniformed, just like the airline pilots, and will have equal need (if not considerably more so) to clean the uniform (as you are more likely to land in a boggy field or swab bloot & guts out the back of the cab than the average easyjet pilot!) You will have just as much need of a pair of sunglasses, (even if the need is more pose value, if you have a dark visor alternative) likewise, all the other stuff mentioned.