The military uniform is more than just clothing. For the soldier, sailor, pilot, or Marine, it is an outward symbol of military service, a design feature that reinforces group unity and obedience, and has practical features, such as camouflage or protection from the elements. Each branch of the armed forces has a distinct uniform with a lot of symbolic value, and even within branches, there are different kinds of uniforms for different ranks and functions. Designing a military uniform requires balancing a number of features.
Decide on a colour for the uniform. The U.S. Army typically issues drab green and brown camouflage for its soldiers, colours that allow the soldier to blend into forested surroundings. Troops serving in the desert are issued lighter-coloured camouflage that reflects those conditions. A colour should balance both aesthetics and camouflage needs.
Decide whether the uniform will be for the battlefield or for ceremonial purposes. Military uniforms differ widely in this regard. Standard camouflage fatigues are heavy, practical and facilitate disguise, qualities necessary for the rigours of combat. But many military uniforms serve only ceremonial functions. These value more aesthetics than pragmatic features.
Design insignia. Military uniforms are noted for their colourful, symbolic insignia: The pins, buttons and medals signify rank, branch, battalion, commendations and honours. Insignia is important because it distinguishes members of service who have been awarded certain honours and represents differences in rank within a branch. Decide the style and colour of insignia you want to use and where it will be placed on the uniform.
Choose a fabric. Cotton is lightweight and breathes more easily, making it more suitable for summertime. Khaki or winter olive drab is heavier but provides better insulation, and it may be more suitable for military service in the summer. Wool provides protection from the cold but is heavy and retains moisture.
Design proper footwear. The standard combat boots worn by the Marines and other branches, for example, are heavy-duty, durable and well-suited to combat rigours and physical labour, but the footwear you design depends on function (ceremonial or duty-related).