These M-65 Cold Weather Trousers were manufactured by Brooklyn Armed Forces to U.S. military specs. They include the matching button-in liner. And they arrives to your door pristine, in the same condition as the original M-65 designs rolled off the factory floor in the 60's. And also unlike almost all authentic original versions, these Trousers can be ordered with the matching Jacket (complete with its own button-in liner), see item #744109. The History of the M-65 Cold Weather System. During and after the Vietnam War, the M-65 Cold Weather Coat and Trousers were introduced by returning troops into the counterculture, and indeed among U.S. civilians in general. It soon became a big hit as an everyday outer layer, not to mention a beefy fashion accessory for loners (see Martin Scorsese's Taxi Driver), action heroes (see Rambo), sci-fi characters (see The Terminator), and more. The versatility of the System allows you to wear the Coat, the Trousers, or both across 3 seasons and in a variety of environments and scenarios. Button-in liners can be removed for unlined breathability, or added for deep freeze comfort. Because of its omni-presence and incredible duration in military service, authentic versions of the M-65 Cold Weather Coat and Trousers were widely available during the golden and silver ages of surplus stores. Today, supply is difficult to locate in volume, and of course no new versions of the original design are currently being manufactured. Reproduction M-65 Cold Weather Field Trousers Wind-resistant NYCO (50/50 nylon/cotton) sateen outer shell Quilted nylon button-in liner Snap-flap hip pockets and rear pockets Snap-flap cargo pockets with tie tapes Brass zip fly Side waist adjustment panels Adjustable ankle cinches Approx. 30" inseam (slightly larger in larger sizes)