The A02.1 was one of the standard officer uniforms of the Repubic Army

Republic Army Organization Galactic Republic (GGW, CW and GW)

and Republic Navy

Republic Navy Organization Galactic Republic (GGW, CW and GW)

during the Great Galactic War

Great Galactic War Event Great Galactic War (3681BBY - 3653BBY)

and beyond.
With khaki-colored tunic and pants, dark brown or navy blue undershirt, completed with a dark brown gloves, belt and boots, it was utilitarian and simple. Additional gear included a strap with a pistol holster, an utility belt with multiple pouches, shoulder pauldron - for displaying badges and other commendations, and heavy protective gloves.
The Navy used a different color scheme with a dark brown tunic and blue undershirt.
Several other Republic services and organizations also used these uniforms, each with their own color scheme.
Standard kit

Extra gear