Product available with different options Bachi Bachi of the French Navy Trustpilot 20.75 The bonnet of marine mistakenly called "beret marine", or bachi in slang French maritime, is the head covering of the sailors and boatsmen. In the French navy, it is topped with a houpette-red commonly called pom-pom. It is crossed from right to left by a lace of white cotton called chin chin. View