For versatility and maximum warmth, nothing beats the double-duty M-65 liner. Also known as the Als/92 field jacket liner, this ripstop nylon shell with polyester lining is durable and best used underneath the M-65 field jacket. The knit cuffs make this army jacket liner toasty, and the fabric binding surrounding the two front pockets and the bottom hem ensures a sturdy build that will last for years.