39+ Mens Long Undercut Hairstyle. You can shave the sides of your hair higher too. Undercut long hairstyles for men typically marry together medium to long lengths with a type of buzzed haircut, which can range from a subtle taper fade to something more daring with a patterned hair design.
And now, this short sides, long top hairstyle is back as one of the top hair trends for men in 2018.
As for the top, the rule of thumb is the longer it is, the better (as long as it's still only reasonably long, that goes without saying). It's okay to wear an undercut hairstyle after 40. Moreover, undercut hair is much easier to maintain and take care of altogether. And now, this short sides, long top hairstyle is back as one of the top hair trends for men in 2018.