US postal carriers have a pretty standard uniform, although individuals can request particulars for their special needs -- like this 'special needs' guy who wants to wear a kilt to be part of the standard uniform. I'll note that female postal carriers have pants, shorts, and skirt as an option, but guys don't...I may have to support this just for equality among the sexes; if a female postal worker were denied pants because she were a girl, there'd be hell to pay. Now matter how silly a guy might look in a kilt, it's his right as a man to wear one!