Umbrellas were not allowed in part due to their hindrance in saluting. The rule for women stipulated that umbrellas — which had to be all-black — must be carried in the left hand “so that the hand salute can be properly rendered,” the regulations state.
That part isn’t changing. The small umbrellas will still have to be all black and carried in their left hand to allow for a proper salute.
Marines carrying umbrellas has been a scarce sight.