Some shoulder-length hairstyles come and go, but the shag is here to stay. The look is effortless, flattering, and 110% on trend. It can look like a more traditional shoulder-length style, or you can opt for the more mullet version. Either add bangs or keep it simple — it's really the most versatile hairstyle for 2021. 

Justine Marjan, a global stylist for TRESemmé, told InStyle that the shag got its footing again once curtain bangs made their way back onto the scene. Once they did, the shag cut just blew up. "Versions of the shag have come and gone throughout history, but ... we'll see more haircuts turn to shag territory as people get more comfortable with shorter layers around the face," Marjan said. "This cut is amazingly low maintenance when done well, as it complements the head shape." 

This is a cut that you can get no matter your hair texture or thickness. No matter if your hair is curly, straight, thick, thin, or somewhere in between, an iteration of the shoulder- length shag will not disappoint.