
Straight Perimeter
A shoulder-length hairstyle featuring a clean, horizontal perimeter and a smooth, uniform texture throughout.

A polished, medium-length straight cut characterized by a precise center part and uniform length.Our advanced AI generator lets you try out the Sharp Center Part look instantly. See if it is the right choice for you before making a commitment at the salon.
See the Sharp Center Part for women, or browse the 2026 men's haircut trends.
Suits straight or easily smoothed hair of any density, and flatters oval, heart, and round faces by the lengthening line the center part creates. The clean, uniform shape needs healthy ends to look its best, so it favors those who avoid heavy heat damage. Best for people who like a sleek, polished, low-fuss finish with regular trims.
Ask for a medium, roughly collarbone-length cut kept one-length or very softly layered with a blunt, clean perimeter. Request a precise, sharp center part running straight from the hairline to the crown. Keep the surface smooth and the ends straight across. Finish with a flat iron or blow-dry straight, then a smoothing serum or shine spray for a sleek, polished, glassy result.
Trim every 6 to 8 weeks to keep the blunt perimeter clean, since a uniform straight cut shows split or uneven ends quickly. Daily, smooth with a flat iron or blow-dry and apply a lightweight serum; a fine comb keeps the center part crisp.
Part it with a fine-tooth or rat-tail comb along the hairline while damp, then dry in place. Training the part the same way daily helps it sit straight on its own.
Yes. The straight vertical line lengthens and narrows a round face, and the smooth perimeter falling either side adds definition rather than width.
On naturally straight hair, yes, with just a serum and comb. Wavier hair needs a flat iron or blow-dry to get the sleek, uniform finish the cut depends on.
A blunt one-length perimeter gives the cleanest, most polished result. Very soft, long layers can add a little movement but keep them subtle to preserve the sharp line.
Explore a few similar looks you can try next.

A shoulder-length hairstyle featuring a clean, horizontal perimeter and a smooth, uniform texture throughout.

A classic shoulder-length cut with straight, clean lines and subtle internal layering for movement. The ends are slightly beveled to frame the face gently.

A sophisticated long bob featuring a linear silhouette and subtle tapering at the ends for a soft, straight finish.

A precise, medium-length bob with a straight, level perimeter and a smooth, glossy finish. The hair is cut to a uniform length that frames the jawline elegantly.