Edited sentence: Enlisted garrison caps carry no rank insignia, however all Marine garrison caps carry the Eagle, Globe, and Anchor insignia on the left side.In addition, it is the standard headgear for Marines wearing flightsuits.Marine Corps as the headgear when wearing service uniforms (the other option being the bulkier frame-type service cap).The Marine officer's garrison cap, unlike those of other services, does not have metallic piping; the only marking that distinguishes it from the enlisted cap is the placement of officer's rank insignia on the right side of the cap.Usage is common in the U