Second pattern hood liner for the M51 Fishtail parka. Fishtail Parka Hood Liner with Coyote Fur Trim . This second version of the M51 hood liner is manufactured in a poplin cotton, a lighter-weight material than the first pattern version which use a heavy cotton sateen, the first pattern hoods and parkas were only produced for one year before production switched to the poplin fabric seen use here on this hood liner, the main reason being was that they were more expensive to produce, heavier on the wearer, and harder to dry when wet.
