Giro's new Aether helmet employs a shell-in-a-shell design that allows them to move independently of each other thanks to a ball socket and elastomer joint system called MIPS Spherical. Because of this, the outer shell can float ever so slightly on top of the inner shell, which allows it to take in and dissipate rotational impacts better than a traditional design. It also means that there's no need for the plastic MIPS liner.
The Aether is quite light - Giro says 250-grams for a medium - and retails for $325 USD.
While there's no official, industry-wide standard when it comes to MIPS, the very large majority of performance helmets have adopted the plastic inner liner as it's said to let the helmet to 'slip' on the rider's head during certain types of impacts. That slip is claimed to go a long way in preventing certain types of head injuries because it allows the helmet to move slightly and absorb some of the critical forces. But the MIPS liner isn't a slam dunk, with it messing up the venting and fit of some helmets, or allowing the helmet to slip and rock around when it should sit still.
MIPS Spherical, which was a co-development between Giro and MIPS, aims to solve those issues while still offering all the same benefits.
With no MIPS liner to block the vents, the Aether looks extremely airy.
The Aether itself has been a three-year project, with the MIPS Spherical system first being used in a snow helmet where it was easier to apply. Cross-country and road helmets, with their immense amount of venting, are a much more complicated application, hence the long development time.
One of the challenges was that the complicated shell shape was preventing Giro's normal EPS foam from getting into all the tight spaces that it needed to fill. The solution was to use an EPS foam with smaller beads - Giro calls it Nano Bead - but this turned out to be a win-win as it then allowed for the inner and outer EPS shells to have a different density, and therefore be focused on different types of impacts. Nano Bead is softer, so it's better at dealing with slow-speed impacts, whereas the hard EPS shell can take in harder hits.
Venting aside, the Aether looks a lot like a traditional helmet, and its outer dimensions are no larger, either.
If you're thinking that this shell-in-a-shell design sounds familiar, it might be because you've seen it before from 6D and Leatt. Both other those options are relatively heavy compared to a standard lid, as well as looking absolutely huge on a rider's head. And that's why I expected the Aether to have the same mushroom-like shape... But it doesn't. In fact, it has essentially the same silhouette as the less expensive Synthe that uses the standard MIPS liner. It's even the same weight, too.
One thing that is different is the temperature of the rider's head while wearing the Aether - Giro says that they've measured both and the Aether can lower temps by 2-degrees compared to the Synthe. That's a big deal if you struggle in hot weather like me, or live somewhere that often feels like it's the inside of the volcano.
MENTIONS: @GiroSportDesign
"Cross-country and road helmets, with their immense amount of venting, are a much more complicated application, hence the long development time."
Why not hook up the gravity crowd 1st with a great full face then?
We can regularly have 28 Degrees overnight here during summer. 30 degrees is a nice pleasant spring temp. 40 is when it gets unpleasant
www.bikeradar.com/us/road/news/article/bike-helmet-safety-ratings-virginia-tech-concussion-risk-reduction-assessment-52514
Gimmick.
It is important to know that in every crash there are three impacts: the first is the helmet hitting the object; the second is your head hitting the helmet; and the third is your brain hitting the inside of your skull. It’s the third impact that is by far the most dangerous. So anything that can be done to minimize that third impact is a plus in my book. This same concept applies with automobile accidents and the rest of the body - that’s why cars crumple more now.
MIPS is the first real attempt anybody has made to mitigate that third impact with helmet technology.
So MIPS really is just a bunch of action sports engineer nerds (like me) trying to solve a problem with very little information to go off of. And I’m really glad they’re trying because too many people are getting hurt with long-term injuries (like the symptoms showing 20+ years later). So I will 100% support anything trying reduce the chance of more tragic incidents, like Dave Mirra, from occurring.
www.bikeradar.com/us/road/news/article/bike-helmet-safety-ratings-virginia-tech-concussion-risk-reduction-assessment-52514
While, obviously not conclusive, it’s certainly interesting research
Moreover Producing in China means having helmets made by workers getting paid 25 cents a day (a long, long day), while the industrial waiste is most likely dumped in the river (I have been there) and the same water used for watering vegetables farms (back on your table). The wigs pocket a fortune, getting bigger paychecks every year. Company employees get paid the same rates as 10 years ago (valid for most industries).
So, buying products made in certain places it is not only a human right issue, but also an economical issue that will affect everybody. In the past ten years, the rich got richer and everybody else is still paid the same rate.
Besides getting a lower quality product.
This giro helmet? Just looking at the pictures you can see the poor finish with chips here and there, the flimsy ratcheting in the back and the poor materials used for the padding.
Make yourself a favour and go see a comparable kask helmet at a store.They do not cost 4 dollars to produce. But they are cheaper.
My point is.... in the past 10 years the 1% richer people got xxx times more money, while the 99% is still getting paid like 10 years ago.
They do not have to raise your pay because they keep producing cheaper and cheaper stuff for you to buy.
While they make huge money producing at low cost and still selling at huge profit.
Everytime you buy a product made in certain places, you are making the rich richer and yourself poorer.
The only solution would be to research companies before buying product from them.