The term 'military uniform material' can be summarized by two crossword solutions: SERGE and KHAKI. Serge is a type of twill fabric that has diagonal ridges on both sides, and is usually made from wool, cotton, or synthetic fibers. It is often used for military uniforms due to its durability and wrinkle-resistant properties. KHAKI is a light brown color that is often used for military uniforms. It was originally developed in India in the 19th century as a practical alternative to the traditional white uniforms of the British Army.