THE CHINO, ICONIC PANTS, A WHOLE HISTORY...
On the other side of the Atlantic, cotton twill pants appeared on the American continent during the Spanish-American War. The American army already wore a khaki uniform, but this one was made of wool, so it was particularly warm. American soldiers stationed in the Philippines therefore quickly preferred to adopt cotton clothing and brought them back to the United States. This is why, at the beginning of the 20th century, straight pants imported from China were found in American troops.
It was in 1902 that the Marines wore chinos in a more official way, becoming the khaki uniform of American troops (during exercises and combat). It was even more comfortable in summer or tropical climates. Over the decades, different corps of the American army adopted the famous khaki. Starting with the aviators who will abandon their white clothes (often stained) to adopt khaki. In 1931, it was the turn of the navy submariners. It should be noted that during the Second World War, the entire American army (all branches combined) wore khaki as a summer service uniform in temperate climates.