The best face shapes for a crew cut are square, oval, and round. Diamond, heart, and triangular shapes can work, but oblong faces may not be suited to this hairstyle. Remember that face shape, rather than head size, is the most important factor. With an oval face, different lengths of crew cuts are suitable, while rounder faces should keep a higher hair volume for a more angular look. Square faces suit military-style crew cuts, and diamond-shaped faces work best with a low-to-medium fade. Heart-shaped faces look better with a low, subtly-tapered cut, and triangular faces need more volume around the temples.