also: ヨットパーカ
A wasei-eigo term from 'yacht parka', referring to a casual hooded jacket, often with a front zipper and pockets. In Japanese, it broadly covers parkas and anoraks.
wasei-eigo (Japanese-coined English), from yacht parka
On cold days, I go out wearing a parka.
lightweight polyester jacket
Specifically a thin, windbreaker-style jacket made of polyester, often worn in spring or autumn. This sense is less common than the general parka meaning.
In early spring, a lightweight polyester jacket is just right.