The origins of U.S. military cargo pants can be traced back to the early 1940s. 

The design and adoption of cargo pants were influenced by the practical needs of soldiers during World War II. The military recognised the importance of providing functional and versatile clothing for soldiers engaged in various combat situations.

Cargo pants are characterised by their loose fit, multiple pockets, and durable fabric. The additional pockets, typically located on the sides of the pants, provided soldiers with extra storage space for carrying small equipment, tools, and other essentials. This design allowed soldiers to have quick and easy access to important items while on the field.