On June 14, 2004, the Army announced the selection of the new Army Combat Uniform (ACU). The ACU consists of a jacket, trouser and patrol cap in a new universal camouflage pattern in addition to a moisture wicking t-shirt and Army Combat Boots (suede tan) for either temperate or hot weather climate. The ACU replaces the temperate battle dress uniform (BDU), enhanced hot weather BDU, and desert camouflage uniform.

The ACU patrol cap is a visor style, having a circular top crown with a two-piece inner crown lining forming a pocket between lining pieces.

The hot weather sun hat is a lightweight, soft crowned model with a quilt-stitched brim and chin strap. The hat is lined with self material.

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.

Military specification MIL-H-43577 covers hats made of cotton material.

Military specification MIL-H-44105 initially covered a hat made of cotton/nylon twill material dyed in a 6-color camouflage desert pattern and then different types of hot weather sun hats.

Purchase description GL/PD 07-12 covers the requirements for three types of flame resistant (FR), camouflage cloths, for use in the flame resistant clothing.

Purchase description GL/PD 07-13 covers the requirements for a single-breasted combat coat, a component of the army combat uniform.

Purchase description GL/PD 07-14 covers the requirements for combattrousers, a component of the army combat uniform.

Purchase Description GL/PD 14-04 covers the requirements for unisex and female combat coats to be worn by the Army.

Purchase Description specification covers the requirements for unisex and female combat trouser to be worn by the Army.