CAMPAIGN HAT
 
A felt hat with a broad, stiff brim and four dents in the crown, formerly worn by American World War I soldiers and still worn by drill sergeants. A hat resembling the military cap is worn by forest rangers, state troopers, boy scouts (but not cubs), and other groups. The campaign hat was the original boy scout hat style, but is now mostly used in recreations and by small European scout associations. Also known as a drill sergeant's hat

This design has been active since the 1850's and is currently a design used by many military and law enforcement units.

This style of campaign hat evolved from the felt slough "Hardee Hat" of the 1850's and 1880's to the present day "Montana Peak" which was accepted as uniform in 1911. This rendition does not half the hard geometric lines of today's military and law enforcement hats, but has the softer curves of a battle worn troopers hat of WWI.