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Item # POC002U

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Item # POC002U

Slippery and more comfortable than a greased watermelon.

Being slippery to the air is key when you're racing the clock or your crew, and the Poc Octal Aero Raceday Helmet is as streamlined as you’ll get without buying a full-on time-trial helmet. It's just as safe as the standard Octal, with an impact-dispersing unibody polycarbonate shell and strategically mapped EPS foam, but it forgoes most of the vents in favor of a sleek and smooth design that lets the air slip past with minimal disruption.

POC molded the straps directly into the liner for increased aerodynamics, durability, and comfort, and built in an easy-to-use size adjustment system that conforms to your head with the twist of a dial. Since the Aero is relatively low on ventilation, POC made sure to pad it using Coolbest, which actively cools your head by wicking moisture and encouraging airflow so you don't overheat when you're trying to make it to the finish first.

  • Impact-dispersing unibody polycarbonate shell
  • Strategically mapped EPS foam
  • Straps molded directly into liner
  • Size adjustment via dial
  • Coolbest padding

Tech Specs

Shell Material:
Impact Foam:
EPS foam
Fit Adjustment:
size adjustment system
EN 1078, CPSC 12.03, AS/NZS 2063:2008
Claimed Weight:
[small] 190 g, [medium] 195 g, [large] 205 g
Recommended Use:
road cycling
Manufacturer Warranty:
1 year

Size chart


Head Circumference  21.7 - 22.8in
(55 - 58cm)
23.2 - 24.4in
(59 - 62cm)
Octal, Cerebel
Head Circumference  19.7 - 22in
(50 - 56cm)
21.3 - 23.6in
(54 - 60cm)
22 - 24.4in
(56 - 62cm)
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)
Crane, 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.

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Great intro into Aero helmets

  • Familiarity: I've used it several times

I use this helmet for racing triathlons and it works great. The air vent seems to work far better than I was expecting and while not "fully breathable" I have yet to get overly hot in it. ? I use the Poc Octal MIPS for my training helmet and this as my race helmet!

Survived crash with this helmet

  • Fit: True to size
  • Size Bought: large

I am now on my 2nd POC Octal helmet. First one I crashed on my bike, and yes, my head did hit the pavement. This helmet protected my noggin. The helmet had scrapes and the Styrofoam compressed on the front left corner of the helmet, but the plastic outer shell was never perforated by the pavement. So protection of your head, which is the most important thing with a helmet passed my usage test.

As for the helmet usability, I also give it high marks. it is areo without the need to keep your head in a tucked areo position all the time and end up with a sore neck.
Ventilation is also very good. Never had an issue in heat, and I've used it for ironman's in the middle of summer.

how is the ventilation with this helmet?

I've had the regular Octal Aero since fall. It's got a one central vent, which I think this lacks. Heat doesn't usually bug me, but days in the 80s have me wishing for a more ventilated model. So a POC w/ zero vents? Can't imagine it beyond short TTs or chilly temps.

My head circumference is in between sizes. Do the size numbers have adjustability outside the specified range? Just wondering because I occasionally wear a hat under my helmet.

I doubt there is much room outside the specified range (it's a pretty generous range on the sizing chart). I just ordered a Large for a 58 cm noggin and the feel is great and comfortable, but the fit is just a little big and I'm going to compare it with a medium. I'd say, especially for aero purposes, go with the smallest helmet that is still in your appropriate measurement range. Unless you have a really bulky hat, of course. (then just measure outside the hat while wearing it)