I did a LOT of research and tried quite a number of helmets. I absolutely love this helmet.
I did mutiple rides on a very windy and cold day in February using both my old helmet and the POC Ventral. The cold air was great because i could immediately feel where the air was being channeled and where it wasn't. My old helmet "looked" aero, but only the very front of my head actually got cold. Using the Ventral, i could feel exactly where the air went and it was just as advertised. The venturi effect is real. After many more rides in warmer weather i can attest to its cooling. The air flow from side winds and tail winds are well above my other aero helmet due to the large air scoops.
It is surprisingly quiter than my old helmet also. I've seen other reviews that had issues with the fit of the straps but i had none, even with my gargantuan melon.
The construction is what you would expect from a quality helmet and is perfect. I love the extra proection at the back.
One of the biggest selling points to me though, and this made me SO happy to find... This helmet only really has like one small hole on the top. For those of us without as much hair up top, i used to get all sorts of weird sunbutns and tan patterns. Now that is no longer a problem. It will aid in cooling on really hot days too.
All in all, this to me is a perfect helmet.
I ride about 2k miles a year
I have not been paid or compensated for this review. I purchased the POC Ventral with my own hard earned cash.
Well ventilated for an aero helmet. Fits my head and is much more streamlined than the previous Octal Aero version. Light enough and works with my multiple types of sunglasses (POC, Tifosi and Gooder). No complaints other than getting mistaken for a hipster.
Package arrived promptly and it was much needed as my S-Works Prevail helmet was well over 10 years old. So I needed something a bit newer.
Packaging is what you would expect for a helmet.
Fit: this helmet fits my big head perfectly. With the fine adjustment knob at the back it really made fitting into this helmet much easier. When riding, you definitely feel more of the air going through, I will wait for the warmer months to see how this truly works.
I have a rather round head, and most bike helmets are designed for a more oval shape, and just don't fit me. This helmet does. Beautifully. It's light, and just as it claims, is very cool in the heat. And it doesn't look like you're wearing a cheesehead lol.
This helmet has perfect balance of lightweight, aero, comfort, safety (proprietary MIPS equivalent) and ventilation. Most helmets out there compromise at least one of these factors, but the Ventral checks all those boxes. With my old Specialized Evade my head used to get warm on hot days with sweat dripping down onto my sunglasses, by comparison the Ventral is super breezy.
I live in SoCal, so having a ventilated and aero helmet is important for me. Ive use helmets from Specialized, Giro and Lazer and the Ventral is my favorite and most comfortable so far.
Size wise I am typically on the upper end of a medium, with some brands a large. The Ventral medium was too narrow, but the large is a perfect fit and doesnt appear big on my head. I would best compare the sizing to Kask helmets after trying both on.
I made the switch from Giro to POC a few months ago and couldn't be happier. The white one is great for early morning rides when the sun is still rising it is much more visible. The air flow is great and the helmet is light I never think about it on my head. I got this on sale and would not have paid $280 for it as I don't find it much different than my Octal which was like $150. I got a M and could have probably gotten a S but it fits fine!
The Ventral Spin fits exactly like my Ventral Air Spin, and weighs just 19g more (298g vs 279g). The Medium helmet fits nicely on my 57cm circumference head, with ample room for a cap underneath. I've only worn the Ventral Spin on cold and mild days, so I can't say how it performs in hot weather. However, it does seem "quieter" on windy days than other helmets I own. Fluorescent orange is great for safety, especially during low-light fall and winter days.
The helmet's only downsides pertain to sunglasses: 1) the "sunglass garage" flat out doesn't work, and 2) the arms of my POC Do Half Blades bump the helmet's back edges behind my ears if I don't position the arms just right. I've read this is a problem with other sunglasses as well, but don't have other sun glasses to test for comparison.
Reposting review which originally showed up as anonymous
I bought the Ventral SPIN (orange, large) to replace a three year old Octal MIPS (also orange, large) that was damaged in a minor (and rather embarrassing) crash. I have not experienced any issues with the fit compared to the older helmet - fits just as well even over a Headsweats. The old helmet was well ventilated, but this one is even better. I really like the high visibility (but the old helmet had clearly faded a bit in the sun as the new one is much more orange). No complaints at all.
My first encounter with POC headwear. Now wish I had two more of them. Besides the awesome ventilation aspects, the padding design within the helmet doesnt leave a dent in your forehead after a three hour ride. Go for it!
This helmet checks a lot of boxes aero, MIPSSpin, high scoring on helmet safety tests, well ventilated. I've used it on several hot, humid rides and never felt it was underventilated. I have a long narrow head and it fits me well. Other helmets that have fit me well are Lazer GenesisZ1, Kask Protone. GiroBell fit me terribly, made for round, bowling ball-like heads.
The straps are interesting - you can't really adjust the length under your ears but you can adjust the foreaft position of the junction. For me the straps were low enough but in order to get the angle of the helmet on my head correct, the front strap is positioned further forward on my face than most other helmets. Not bad, just different.
Very comfortable, would buy again. I hope not to need to for years.
Light, comfortable, aero and looks good in my opinion.
Newer version fixed short straps issue, so now it fits like it should. Wear a cap or you might get sunburned, ventilation openings are quite large.
One downside tho, insects get into the helmet on fast descents