Big Pack is a well-known historic outdoor equipment brand (famous for its backpacks, sleeping bags, and heavy-duty outerwear), and their vintage "Happy Pack" down line dates back to the late 1970s and 1980s. These premium jackets are highly collectible among fans of retro outerwear, Gorpcore fashion, and vintage gear resellers.
Note the double side zipper (up/down) and snaps. 1 inside pocket, arm pocket and 2 front pockets.
**It will need cleaning and has a few black dots (inspect pictures) on the front.