Vintage Chinese Work JacketVintage chore jacket with frog buttons. Blue vintage Chinese kung fu, tang or work jacket with Mandarin collar, front frog knotted button closures (pnku), four working patch pockets and white upturned cuffs. Unlined. This would have been manufactured for international export. This style of tangzhuang or tang jacket (widely known as a Kung Fu top) is traditionally worn for martial arts but the style became popular as a work or casual jacket the