Term

Weight line

The weight line is the visible edge where the heaviest part of the hair sits, often at the bottom of a one-length cut. A shag softens or removes it by moving weight upward and outward, so the silhouette is rounder rather than triangular or A-line. This matters most for thick and curly hair, which can otherwise stack into a heavy triangle. A blunt cut keeps a strong weight line, whereas a shag deliberately avoids one. See also: Blunt cut, Graduation, Layers, and the guide What Is a Shag Haircut? The Layering Idea Explained.