It's called the undercut you god damn morons.
True to the 20s/30s revival (and the media that’s spurring it on), the key look to the undercut revival is that worn by James ‘Jimmy’ Darmody (actor Michael Pitt, photographed at top for Interview magazine) in Boardwalk Empire. Pitt has a pretty good hairline, but for those who are thinning at the temple area there are still options:
For men with thinning hair ^
What to ask for.
The first thing you have to ask your hair dresser / stylist / barber / drunk friend with a pair of scissors (actually, insist the latter stays the **** away from you) is whether it’s going to work for your hair. Yes, we recommend this step for all the hair trends we write about, but a haircut that requires short sides and a long top isn’t going to work for every guy out there.
For those whom it is, we’ve again turned to Melbourne stylist Annika Bowen for advice on precisely what you should be asking for.
When it comes to asking for your sides to be cut, you have two main options. The first is to have them cut with scissors over comb. The second is to have the sides cut short with clippers. Annika recommends the latter, with the clippers giving a much better effect – having the clippers on number 2 is preferential for this kind of undercut, however, number 3 will still work for those not wanting to go quite as short.
If you do have a thinner temple akin to the second photo above, you can opt to have the sides trimmed extra short at the front temple area. Specifically you’re after a number 1 cut in front of your ears, with that shortness blended into a number 2 or 3 on the rest of the sides and on the back of your head.
While it has to be left long, you have a few more options when it comes to the top. The key rule to the top is this, however: it has to be long, and more length (within reason) is better.
Unlike most other haircuts for the coming seasons that use clippers, this undercut is one that doesn’t require any blending between the sides and the top. You could, however, opt to have it the top blending with the crown depending on how your hair sits. But in short, take a picture of the style that you prefer when you go to get your haircut.
Final tip: this is a hair cut that’s depends on the sharpness of the outline, so when your hair dresser passes the mirror to the sides and back of your head, double check to see that it is precisely finished, particularly on the back of your neck and around your ears. If it’s not, ask them to touch it up. And if they don’t give you the final once over with a mirror, don’t go back.
What to style it with
Annika recommends but one product for styling the undercut: gel. Specifically a light weight gel that the likes of Label.M, Tigi Catwalk and Bumble and Bumble all make.
Another site recommends this gel
Thread: The SS Haircut