Wool felt. Official drill sergeant hat as worn by State Troopers. The campaign hat is also worn by the character Smokey the Bear with his message "Only You Can Prevent Forest Fires". The Campaign hat is a broad-brimmed hat, with a high crown, pinched symmetrically at the four corners (referred to as the "Montana crease"). Solid color brown. Hat does not contain any writing or insignia. Trooper Brown genuine drill sergeant campaign hat (smokey bear). Police law enforcement campaign hat in brown color with black vinyl chin strap. Also known as forest ranger hat, campaign cover, Montana Peak, drill instructor cover, drill sergeant hat, round brown, ranger hat, sergeant hat, Scouts hat, Smokey Bear hat, lemon squeezer.