Men's · Long

Slick Back Haircut: Undercut, Fade & Styling Guide

All hair combed straight back with pomade for a sleek, controlled finish — the slick back is one of the most versatile, sharp-looking styles for men with 4 or more inches of length on top.

The slick back is deceptively simple: comb everything straight back, hold it in place with a medium-to-high-hold pomade, and leave it. No volume-building, no sculpting, no directional blow-dry. The challenge is everything the cut reveals — a fully exposed forehead, clear bone structure, and a clean hairline — so the styling has to be precise and the product has to hold. Pair it with a sharp undercut or a low fade and the result is one of the most polished looks in men's barbering.

At a glance

Best for
Oval, square & diamond faces; type 1–2 (straight to wavy)
Hair length needed
4+ in on top to reach fully back
Maintenance
Medium (daily product application, 3–5 min)
Barber visit
Every 3–5 weeks (more often with undercut/fade)
Styling time
3–5 min
Difficulty to grow out
Easy — the top just gets longer

The slick back undercut: the sharpest variation

The slick back undercut combines the fully-back top with a disconnected undercut on the sides — sides cut short or skin-close with a hard line rather than a gradual blend. This disconnection creates one of the most dramatic haircut silhouettes available: the long, flat top sitting on top of very short, almost-absent sides. The hard part (a shaved line along the parting) is optional but adds further definition. For a slightly softer version, ask for a low fade rather than a full undercut disconnect — the sides still look sharp but the transition is smoother.

Slick back side options compared
Side treatmentContrast levelMaintenanceBest for
Undercut (disconnected)Very highEvery 3–4 weeksSquare, oval faces; bold look
Low fadeModerateEvery 3–4 weeksMost face shapes; versatile
Taper (no fade)LowEvery 5–6 weeksConservative settings; longer wear
Natural lengthNoneEvery 6–8 weeksClassic, grown-out look

Face shapes and the slick back

Because the slick back exposes the forehead entirely and pulls all visual weight toward the back of the head, it works best with strong facial structure. Oval faces wear it without modification. Square faces benefit from the clean, uncluttered look — the sharp jaw and the clean hairline complement each other. Diamond faces look excellent: the exposed cheekbones and the sleek profile work in harmony.

Round faces can wear a slick back but should keep a very small amount of height at the crown — not a pompadour-level lift, just a subtle rise — to prevent the face looking wider in proportion. Consult our face shape guide for detail. Men with a significant widow's peak should note that the slick back shows it prominently — this can look intentional and strong, or something to work around depending on your preference.

Barber tip: When asking for a slick back, tell your barber not to layer the top — you want length preserved throughout, not graduation toward the front. Layers or heavy thinning on top will cause the hair to spring up rather than lying flat, making the slick back much harder to maintain.

How to style a slick back: step-by-step routine

  1. Start with damp hair. Towel-dry until hair is about 60–70% dry. Applying pomade to completely dry hair means it sits on the surface rather than penetrating the hair shaft, and the hold will be weaker and uneven.
  2. Optional: rough-dry with a vent brush. For the cleanest slick back, use a vent brush to blow-dry the top section straight back on medium heat. This trains the hair into the backward direction and removes the natural forward growth pattern most hair has. Takes 2–3 minutes and significantly improves how flat the finished style sits.
  3. Warm a pea-to-marble-sized amount of pomade between your palms. The amount depends on your hair thickness and length. Start with less — you can always add more. Rub your palms together until the pomade is completely transparent and evenly distributed.
  4. Work pomade through the hair from front to back. Starting at the hairline, push the hair backward with your palms and fingertips, running your hands from the forehead toward the crown in the direction you want the hair to sit. Cover the entire top section.
  5. Comb with a fine-tooth comb, front to back. Use firm, slow strokes from the hairline backward. For an extremely clean line at the sides, hold a fine-tooth comb against the parting line and press the hair firmly down. Repeat across the full top section until everything is uniformly flat and directional.
  6. Press the sides smooth. If you are wearing the sides longer (no undercut or fade), comb them back or down and press with your palm. The goal is one continuous line of combed-back hair, not a distinct part.
  7. Check the back. Use a hand mirror to confirm the hair at the crown and nape is lying flat and not bunching or flipping up. If it is, apply a tiny amount more pomade and press down firmly with your palm.
  8. Optional hairspray finish. A single pass of medium-hold hairspray over the top seals the combed lines and prevents humidity-related frizz lifting the surface. Skip this if the occasion is informal.

Barber tip: The slick back relies on gravity — and short hair in the nape fights it. If the hair at the back of your neck flicks up or outward, ask your barber to take the nape short with a clipper (#1 or bare) and taper it close. A clean nape makes the slick back look finished all the way around, not just from the front.

Choosing the right product

Product finish matters enormously for this style. The hair products guide has the full breakdown, but for a slick back specifically:

  • Water-based pomade (medium–high hold, semi-shine or high-shine): The everyday workhorse. Keeps hair flat and pliable, washes out with warm water, and lets you re-comb if the style shifts. Semi-shine gives a modern, business-ready result; high-shine gives the more classic, slicked look.
  • Oil-based pomade (maximum hold, high shine): The most powerful hold, great for thick or resistant hair. Builds up over days for extra grip. Requires clarifying shampoo to remove. Not for everyday use on fine hair.
  • Strong-hold hair cream: For a natural, matte slick back. Less gloss, more movement. Works for fine or medium hair that oil-based pomade would weigh flat.

If you prefer the pompadour's height and sweep rather than the slick back's flat profile, read our full pompadour guide — the top length requirement is similar but the styling approach differs significantly.

Frequently asked questions

How long does my hair need to be for a slick back?
You need at least 4 inches on top for the hair to reach back and stay in place without flopping forward. Five to six inches gives you a more complete slick back with the hair fully clearing the forehead and reaching toward the back of the crown. Sides can be any length, from a short undercut to a low fade.
What is the best product for a slick back?
A medium-to-high-hold pomade with a medium or high shine is the classic choice — it keeps every strand flat, provides the glossy finish the style is known for, and allows you to re-comb throughout the day. Water-based pomades wash out easily. For a matte slick back, a strong-hold cream or clay can work, though the signature gloss will be absent.
What is a slick back undercut?
A slick back undercut combines the all-back styling of the top with a disconnected undercut on the sides — meaning the sides are cut very short or skin-close with no gradual blend into the top. The hard line between the long top and the short sides creates a dramatic contrast. It is one of the sharpest-looking slick back variations.
Does a slick back suit all face shapes?
The slick back works best on oval, square, and diamond faces because pulling all the hair back exposes the forehead and cheekbones fully — strong features carry this well. Round faces can wear it but may want a small amount of height at the crown to avoid making the face look wider. Oblong faces should avoid very flat, close-to-the-scalp styling and keep a little volume at the crown.
Slick back vs pompadour — which is easier to style?
The slick back is easier. While both require a medium-to-long top, the pompadour demands a round brush and deliberate blow-dry volume-building, whereas the slick back just needs a comb and pomade applied to damp or dry hair. The slick back takes 3–5 minutes once you have the routine down.

Get the pomade right

Hold level and finish make or break a slick back — the products guide covers every type.

Hair products guide