18+ Number 3 On The Sides Haircut. In a 3 on the sides haircut, the sides are clipped down using the #3 clipper guard down to 10mm (3/8 of an inch). Number 3 on top with 1 on the sides.

Get it tapered on the sides and you can easily sport the ronaldo look! The number 3 on top with a 1 on the sides consists of hair that’s ⅜ inch (10mm) long on top and ⅛ inch (3mm) on the sides. Number 3 on top with 1 on the sides.








