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Item # POC0067

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Item # POC0067


Using technology and innovative design to keep your brains inside your skull.

While speed can be intoxicating, it's never a good idea to lose your head. POC doesn't want you losing your head, so they designed their helmets to be exceptionally safe, and stylish too. The POC Cortex DH helmet is the crown jewel of their work.

POC designers started with the helmets they made for ski racing. Realizing that the demands of protection in that realm aren't the same as the demands of bike riding, they knew they had to do something different. To them, one of the biggest issues is ventilation; cyclists desperately need a cool head, while skiers do not. If the vents are too small, summertime riding can be oppressive. Still, ventilation cannot come at the cost of protection. Vents that are too large will expose the riders head to more risk than is appropriate, especially for freeriders and downhillers who face potential injury from branches and jagged rocks. POC also realized that single layer hard shells were sometimes culpable in whiplash injuries because they tend to bounce, and micro shells, while great at absorbing impacts, were not durable and offered little in the way of penetration protection. So they went in a new-direction that combined the best of both worlds -- double-overlapping shells.

They use the acronym VDSAP for their system (Ventilated Double Shell Anti Penetration). From the outside in, POC's double layer Cortex DH Helmet has a lightweight carbon fiber outer shell. Then there's the Aramid ballistic Penetration Barrier, or APB in POC speak. It's a layer of penetration-resistant Aramid (basically Kevlar, the same as found in bullet proof vests) between the outer shell and the liner shell. Further in, a thin polycarbonate shell covers the EPP liner material. As a result of this trifecta of protection, the outer shell can be thinner than usual, which makes it both lighter and better at absorbing blunt impact energy.POC Cortex DH Helmet Detail

With the double-shell design, POC positions the vents so that the ones on the outside of the Cortex DH helmet draw air into channels that flow to the inside vents. This way, the vents next to the skull are not exposed to the outside. There are also ear vents that allow for decent hearing while keeping your ears protected. The chinguard is designed to keep your face and teeth ready for family photos, yet it's far enough away from your mouth and well ventilated so you can breathe easily, even when you have to ride up short climbs.

Perhaps the most interesting aspect of the Cortex DH Helmet is its use of MIPS (multi-directional impact protection system) technology. Basically, safety engineers know that most bike crashes deliver your head to the ground, not straight down, but at an angle. These oblique impacts create problems as your helmet hits the ground, sticks, and your brain continues on its original trajectory to a degree. While we have a natural cushioning layer of cerebrospinal fluid that allows some shear between the brain and the skull, POC helmets with MIPS imitate our own fail-safe elements and add another engineered shear zone between the helmet liner and shell to further soften and absorb these rotational energies as they develop during our high-speed crashes. This adds up to the best possible protection for your brain.

The POC Cortex DH helmet comes in White and is available in Medium/Large (55-57cm) and Large/X-Large (58-60cm).

  • POC's dual-zone ventilation system keeps your head from burning up
  • Unique ear chambers help with hearing and balance
  • The chin bar is optimized for protection while positioned to reduce breathing interference

Tech Specs

[shell], carbon, [liner], closed-cell foam, super EPP
Fit Adjustment:
Recommended Use:
downhill, freeride

Size chart


Skull Orbic Comp, Skull Orbic X, Skull Comp, Super Skull Comp, Skull X, Skull Light, Receptor Bug, Sinuse, Receptor Bug Comm.
Head Circumference 20 - 20.5in
(51 - 52cm)
20.8 - 21.3in
(53 - 54cm)
21.5 - 22in
(55 - 56cm)
22.5 - 22.8in
(57 - 58cm)
23.3 - 23.5in
(59 - 60cm)
24 - 24.4in
(61 - 62cm)
Fornix, Fornix Backcountry, Skull Light II, Receptor Bug Adjustable, Trabec, Trabec Race, Receptor Flow, Skull Light Women's
Head Circumference 20 - 21.3in
(51 - 54cm)
21.5 - 22.8in
(55 - 58cm)
23.3 - 24.4in
(59 - 62cm)
Synapsis, Frontal, Receptor+, Receptor Backcountry
Head Circumference 20.9 - 21.3in
(53 - 54cm)
21.7 - 22in
(55 - 56cm)
22.4 - 22.8in
(57 - 58cm)
23.2 - 23.6in
(59 - 60cm)
Cortex DH
Head Circumference 20.9 - 21.7in
(53 - 55cm)
21.7 - 22.4in
(55 - 57cm)
22.8 - 23.6in
(58 - 60cm)
How to Measure:
Measure around your head where your hat would fit comfortably.

Reviews & Community

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POC Cortex DH Helmet

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Here's what others have to say...

Unanswered Question

Does anyone know how the Leatt fits with...

Posted on

Does anyone know how the Leatt fits with the Cortex DH? Looking to upgrade my helmet and want to make sure it fits well with the Leatt. Thanks!

Can Used for BMX?

Posted on

Can Used for BMX?

Best Answer Responded on


Yes, this helmet could certainly be used for BMX riding. I will mention that this helmet is designed for protection against 1 large impact and not multiple, smaller impacts that most BMX/Skate style helmets tend to be geared towards. If you have any additional questions, please feel free to contact our customer service department at 888-276-7130.

5 5

Most tech in a helmet

  • Gender: Male

bought this after ruining 2 helmets in a 2 year span. figured if this one will survive some small hits its worth the money. I also like the concision reducing design concepts like mips and floating outer shell. will update after I have had it for a year and put it through the ringer.

Update - I had a pretty serious crash at the end of the season. I bent the MIPS pin. No concussion and no other damage to the helmet. Replaced the pin easily and am comfortable with keeping the helmet in service.

5 5

All the safety, light weight, good fit.

The helmet fits well. It's #1 focus is safety. I do not want a TBI, even a mild concussion, again. I chose POC as my best bet, particularly for their dual layer system (decreases maximum force) and their MIPS system (decreases rotational forces that cause concussions).

The M/L fit is similar to my Giro Remedy CF medium. I liked the Giro, but it was old and I chose to upgrade. Compared to the Giro, the construction is better, the protective features are better, the hearing is better, and I am thinking the visor won't randomly fall off like the Giro.

The Giro is notably cooler when standing still, but the Cortex DH's venting system works very well when moving and isn't notably hotter than the Giro.

I use this for DH Mtb and skiing.

OK Jon, I read your answer on BC. But...

Posted on

OK Jon, I read your answer on BC. But when I go to the poc site both the snow and bike Cortex DH look the same. Is the difference just a mater of what year it was made or does poc have a dedicated DH for snow and a dedicated DH for wheels? If it is just a matter of changes made from year to year, is there a good reason I should not get the DH from Huckn Roll instead of BC? Thanks for taking the time to answer.

Responded on

I don't know about the past, but the current DH is certified for BOTH bike and snow.

anybody bought this?

Posted on

anybody bought this?

Responded on

I want to know if the POC helmet is compatible with Leatt Brace

Responded on

Others have reported it works well with Leatts

POC Cortex DH vs Giro Remedy S Carbon...

Posted on

POC Cortex DH vs Giro Remedy S Carbon helmets. Anyone know or can recommend which one they'd purchase and why?

Responded on

I had a Remedy Carbon (same as the S, but with vents). I switched to the Cortex DH. The Cortex has better protection and build quality. I feel my head was worth the $. Not that the Giro was bad by any means.

Any differences between the Bike Cortex...

Posted on

Any differences between the Bike Cortex DH and the Snow Cortex DH on backcountry.com?

Responded on

See what I wrote you on B.C it explains it all