A parka or anorak is a type of coat with a hood, often lined with fur or faux fur. The hood protects the face from freezing temperatures and the wind. The Caribou Inuit invented this kind of garment, originally made from caribou or seal skin, for hunting and kayaking in the frigid Arctic. Some Inuit anoraks require regular coating with fish oil to retain their water resistance.
The classics endure because they do a job well. So it is with the parka, first fashioned by Inuits to outwit Arctic breezes; adopted by the US military to protect flight crews from the same; then taken as uniform by mods, since the fishtail kept moped grime off their suits