What is the two-block cut?

The answer

The two-block cut is a cut with two distinct zones: a shorter lower block around the sides and back, and a noticeably longer top. The contrast between the zones gives the style its clean outline and keeps the silhouette narrow. The join can be a sharp edge or a soft blend, and the top can be a short crop or long enough to fall over the forehead. Tell your barber where the line should sit.