US Army Uniform Classes

The US Army classified its various uniforms according to their particular function:

Class A -

Officially known as Service Dress, this was the US serviceman's 'Sunday best' uniform that he would have worn on parades or out on the town. Officers' Class A uniform was also known as 'Pinks & Greens'.

Class B -

This was the smart in-barracks working dress and was essentially the Class A uniform minus its jacket. Sometimes known as 'informal post uniform'.

Class C -

This was the summer/tropical uniform made of light khaki woollen-worsted material (officers) or cotton (enlisted men).

Class D -

Fatigue dress made of herringbone twill material. Not usually applicable to officers