The Rhodesian Army combat cap was designed with a rear flap to keep rain and sun off your neck. Folding out in two folds and could be buttoned back up in to place. In general the RAR Askari liked to wear his cap with the first fold unfolded, but it varied.
During Fireforce operations a Day Glow patch was sewn into the inner cap, so that troops could be identified on the ground by overflying helicopters and aircraft of the Rhodesian Air Force. Once on the ground troops would fold their combat caps or floppy hats inside out so as to show the day glow.
This cap is a 1 RAR cloth badged cap but originally the cloth badge only had the silver RAR shield on it. Once the 2nd Bn RAR was formed the 1 RAR or 2 RAR was added to denote which battalion.