Parka, Liner, M-1951 (FW22) - OliveAmong vintage military jackets, the M 1951 (or M51), commonly known as the fishtail parka, has more variations and riffs across menswear than anything else. It's really the 2nd generation of the style, made into a system piece (originally issued with a fur hood and removable liner). The fishtail was intended to be tied around soldiers' legs for additional cold weather protection. This is the matching liner for the (Real McCoy's 2022 model of the) 1951