Usually a zippered sport jacket with long sleeves, knitted cuffs and waistband, interlined with down quilted to the outer fabric and lining. Worn for warmth and popularized for everyday use and sportswear in the 1970s.
FDF, 1988, Cohen, 2004
Context:
Boy’s Down Jacket. Keep warm and dry in this jacket insulated with 70% down / 30% feather filler. With removable hood, inside chest pocket for gloves, and knit sleeve cuffs.