An undercut features short, often shaved hair on the sides and back of the head, with longer lengths on top. It can take a few months to one year for the cut to fully grow out.

Explore bold and rugged Viking braid styles for men, from fierce Mohawks to edgy undercut braids. Unleash your inner warrior ...

Meanwhile, the hair on top of your head was shaved to a slightly longer length. This way, the shaved sides appeared blended-in with the top of the hair. It is also referred to as a buzz cut.