Introduced in 1941 to replace the blue denim version issued in the 1930's. The hat is made from the same sage green HBT as our 1st pattern HBT uniform. It was originally intended to issue these to all troops except for armored vehicle personnel, who were to be issued the HBT cap instead. However, the caps were more popular with everyone which led to the Daisey Mae being declared limited standard in 1943 and gradually phased out. These hats saw service in all theaters of the War. Important Sizing Notes