An undercut is a hairstyle that leaves length on top while the back and sides of the head are closely cut or buzzed. It was fashionable from the 1910s to the 1940s, predominantly among men, and has seen a revival in the 1980s and again in the 2010s

. The style is closely related to the curtained hair of the mid-to-late 1990s, although those with undercuts during the 2010s tended to slick back the bangs away from the face

. The undercut has a long history and has been associated with poverty and delinquency, dating back to Edwardian Britain

. It is a versatile style that can be paired with various top hairstyles, providing a deliberate, calculated, and fashionable finish

. The undercut has also become popular among women, with variations ranging from daring shaved sides and temples to neat short hair fades and hidden undercut designs

. The style has been embraced by various celebrities and has become one of the most iconic hairstyles for men, offering a modern edge to classic hairstyles