I just went to pull out my Beiffe helmet and noticed that there is mildew on the liner in the back????!!!!! it's not acually IN the helmet but on the edge that is Perpendicular to the shell...must have been damp in the closet ANYWAY, does any body have any Idea on how to get rid of that crap on a helmet liner??? it's one of my favorite hat's and I don't want to toss it just because of a little fungi... seriously, what works?