Create a colorful look with this Adult Bob Blue Wig a colorful update to a classic hairstyle. This cut - which includes full bangs and a jaw-level cut - was fashionable in Europe before World War I and it became all the rage in the U.S. during the Flapper era of the 1920s. It has fallen in and out of style since experiencing a big resurgence in the 1960s and remaining popular today.