Throughout the 1960s, British hairstylist Vidal Sassoon revolutionized women's haircuts, allowing them to skip weekly salon visits and manage their hairstyles at home. Sassoon moved away from the then-super popular beehive hairstyle because he didn't believe a good haircut should require a ton of upkeep, according to Sassoon Academy. Inspired by the German geometrical design style Bauhaus, Sassoon said he engineered the asymmetrical cut we now know as the Sassoon bob as a way of "getting rid of the superfluous and paring it right back to basics."

Shorter in the back with longer layers left in the front, this blunt-cut bob is trending once again, decades after it was originally popularized. Even though it looks easy to achieve, Sassoon warned about it being tough to properly execute, saying it was "pure geometry." His low-maintenance cut was loved immediately, with Grace Coddington, the former creative director-at-large of American Vogue, describing it as iconic. "[Vidal Sassoon] totally changed hair — everything before then was lacquered and stiff. Suddenly you could shake your head — it was a defining moment of the Sixties," she shared with Vogue.