Buster Brown suit
young boys' suit consisting of belted, double-breasted tunic or jacket worn with a large round collar, floppy bow, and shorts or knickerbockers
en-US/ˈbʌstɚ ˈbɹaʊn ˈsut/
young boys' suit consisting of belted, double-breasted tunic or jacket worn with a large round collar, floppy bow, and shorts or knickerbockers