A-A-59788: PATROL CAP, UNIVERSAL CAMOUFLAGE PATTERN
Commercial item description A-A-59788 covers the requirements for a visor style patrol cap with inside pocket on crown of cap, intended for wear in all environments by military personnel of the Department of Army.
- 2017-04-06: Revision A; PATROL CAP 
- Class 1: Universal Camouflage Pattern
- Class 2: Operation Enduring Freedom Camouflage Pattern
- Class 3: Operational Camouflage Pattern
- 2006-06-29: PATROL CAP, UNIVERSAL CAMOUFLAGE PATTERN
- ↑ https://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=275170