SOCKS
I once got bollocked in a Bullldog at UAS for not having any socks on, though i was wearing bloody great desert boots kindly issued to me by the stores. The C.O. growled 'what would i do if it caught fire'. The thought of anything happening to my feet through those boots seemed negligable, but the C.O. wasnt a man to reason with!!
I do have a natty pair of white leather gloves though, the only thing i found useful wearing from my UAS days.