** Up top, you want a horseshoe-shaped section of longer hair, between 4 and 6 inches, starting at the corners of the front of the hairline and going back to the center of your cowlick.
** If you plan on parting the undercut, have the hair cut slightly longer on the side you'll be parting from. For example, if you push your hair to the left, the hair at the part on the righthand side should be longer to help everything lay flat.
** The sides should be buzzed down to about 1/8 inch (a #1 buzzer).
** If you want a disconnected undercut, there should be a blunt demarcation between the sides and the top. If you prefer a connected undercut, have the barber transition the hair in between.
How to Style the Undercut
1. Start with clean, towel-dried hair.
2. With a blow dryer, direct the hair up and back so it has some volume.
3. Work in a dime-sized amount of styling cream.
4. Finish off with a wide-toothed comb for a clean, slicked-back classic look.
More Mens Hair Styling Tips
Be sure to pick a hairstyle that matches your face shape.
Learn how to properly apply hair product.
Different stylerslike wax, paste, pomade, or creamdo different things. See where they fall on the Hold vs. Shine hair-styling matrix.