How To Cut a Classic Boys' Haircut

The classic boys' haircut, much like the timeless men's short back and sides, is a versatile look that never goes out of style. This haircut features closely clipper-cut sides and nape, gradually blending into slightly longer hair at the crown. The result is a clean appearance that suits boys of all ages.
The defining characteristic of this haircut is the tapered perimeter along the sides (around the ears) and back (the nape). The taper can be adjusted based on preference and weather. Shorter and closer to the skin in warmer months for a cooler feel, or left slightly longer in colder seasons for warmth.
As the hair moves upward, it gradually increases in length, reaching its fullest point (about an inch) along the parietal ridge and the top sections. This gradual graduation creates a balanced shape that frames the face nicely.

See also:
More hairstyles for little boys
How to cut a bowl cut for boys