I'm assuming it's cloth, since I've haven't seen many USMC Officer's Vinyl Covers. The way I clean it? Throw it in the washing machine with bleach. Comes out looking like new...Any tips for the best way to clean a dingy dress cover? Anyone try shout wipes?
I've used staight bleach with a toothbrush on spots before, but I wouldn't dunk the whole think in bleach...She also said bleach and water works too, just make sure to dilute the bleach enough as to not damage the fabric.