GiroAether Spherical MIPS Helmet(Return to Product Page)

Helmets are subjective, right? My deal: Longtime Giro user who switched to Kask Protone in '20. Really liked the comfort and look of the Protone and Protone Icon but had TWO consecutive Icons with a defective retention dial. First one right out of the box, second one after two months of use so switched back to Giro. Aether fits me well and feels better ventilated than the Icon. No crashes in either so cannot speak to relative protection.

I decided that it was time for a new helmet after taking a few spills in the last few years so this was on sale and I am replacing an old model, but only MPS helmets allowed! Fits nicely, has great visibility so it was the right choice.

First of all, a huuuuuuuuuuge thanks to the wonderful folks at BikeTiresDirect!!! They were extremely helpful and understanding during the purchasing process, as it took two exchanges before receiving the correct size/brand helmet. Thanks BTD, you guys and gals absolutely rock!!!

As for the Aether, I ultimately ended up with a size small and it fits my bald head perfectly. I always wear a skull cap under my helmet (for warmth in the winter and for sweat management in the summer), and the size small Aether still provides plenty of room for that layer in between my head and the helmet. So far I've only worn it for one 30-mile ride, but I can already tell that I'm going to love this helmet. It's super comfortable and feels very light atop my head. Other than the straps under my chin I was pretty unaware of the Aether during my ride.

Aesthetically the Aether is a 10 out of 10. It looks great IMO, not too bulky, fairly low-profile even with the MIPS layer, and it does not look like a big mushroom on my head.

I really hope I never have to personally test the crash protection of this helmet, but if I do I can be confident that I'm wearing one of the safest helmets on the market. The Aether is not inexpensive, but I think it's well worth the cost.

This fits like the prior Synthes, overall. It allows great air flow and I love the neon yellow color. I had a 4 year old non-mips Synthe that is beyond it's useful life, thus bought this. The straps are secure and don't collect sweat. The padding is light but supportive. The two-part design is something I don't notice at all, hope that's a good thing. The only gripe is the front plastic part of the cage leaves some indents on my forehead when I use it, even allowing sun in to give me an odd forehead sunburn during summer. Fall riding so far has been good, not needing a beanie hat so far and still very breathable.

I would purchase again, although expensive, I'm trusting the safety tech is worth it.

This is my road bike helmet. I have owned it about 3 months and love it. My head is big (ask my wife about that), but it fits well, even with a cap on my head. The adjusting knob moving easily, click, click, click. The helmet is well ventilated, and keeps me cool (I bought the white version), which I appreciate as temperatures rise here in SE Washington The helmet is light and feels like it not there. I use a glasses-mounted mirror and the rear view is unobstructed. Last thing, I bought it to replace my 3-year old Giro Synthe because BTD had a killer discount - so I pulled the pulled the trigger (in a figurative sense of course) and bought the Aether - worked out well so far!

Had to replace my Giro Synthe after taking a header at 45 mph in Big Bear. Replaced it with the Aether, so far so good. The helmet sits lower on the forehead which puts the sunglasses right at the base of the helmet. Will see how that works out? Also the helmet makes noises when the base and outer shell rotate from each other while riding. That my drive me crazy?? Quality, Fit and Finish are Nice.

The fit of this helmet in size Small is the same fit for me as my Giro Synthe (non-mips). I feel it is true to size. I bought the helmet for the added safety and also hoping that it would be cooler than my Giro Aeon or Synthe in the Texas heat. I wore my new Aether tonight in 92-95 degree heat and I could feel the cool air flowing across my head. It was almost like an air conditioner! The helmet is noticeably cooler than my Giro Aeon. I will continue to reserve my Giro Synthe as my winter helmet. The Aether is very comfortable and I certainly did not notice the few extra grams (apx 35) between it any my other Giro helmets. Adjusting the helmet is super easy and I love the new Roc Loc and the sun glasses holder. Highly recommend!!!!

My Giro Synthe helmet was ready to be replaced and I had been drooling over the Aether, so, at a big % off, it was great deal. The Aether has the MIPS technology built in to the helmet instead of being attached to the already made helmet, so the entire interior of the helmet rotates to absorb shock in case of a crash. This seems much better than the Synthe. Fit is very good. I've only had one ride in 85 heat and the ventilation was good.

I use the helmet on all my rides. It is light and comfortable, and fits my head without any undue pressure points. It works with all my Oakley sunglasses. I have used several winter caps under it, and with a twist of the knob it adjusts for a perfect fit.

I crashed once, but did not get to test the helmet as there was no head contact with the ground. I hope to not test the helmets crash worthiness.

Ive been an avid cyclist for 35 years averaging 500 miles per weekalways with a helmet properly attached to my head! Over the years Ive had every top-end helmet produced by Giro. The Aether is by far the best helmet Ive had! While I cannot attest to its crash durability and protection, this helmet is very comfortable, easy to fit, and highly ventilated. In all previous models, I had to wear a headband to prevent sweat from getting into my eyes but not so with the Aether. Its air channeling is simply the best. For those who ride at night, a taillight and headlight can be attached to the helmet without interfering with the MIPS liner.

This is a replacement for a ten-plus year old Giro helmet that finally succumbed to the heat, the elements, and for when I have fallen over after forgetting to unclip. The Giro Aether is a very lightweight helmet that fits nicely over my melon and the rear dial attachment is quick and easy to adjust during a ride. The helmet stays cool, and I couldnt say anything but great things about it.

I bought this helmet for hot summer rides because of the air vents. helmet worked great. I am on my second Giro Aether Spherical MIPS helmet as my first one was put to the test and did it�s job perfectly. I had a head strike to the pavement and basically walked away without serious injury. Helmet took all the impact and cracked but protected me perfectly! Thanks Giro !!!

I've worn Giro helmets for as long as I can remember, and the thing that is most outstanding is the fit. However, in recent years some of the retention materials of Giro helmets have become marginal and I find the useful life of these expensive helmets to become quite limited. Having said that, someone at Giro must have gotten the message because the Aether helmet is definitely built with much better quality and materials. The design of the helmet within a helmet is revolutionary and makes this not a superior safety device but more comfortable for long rides as well. I must say you pay dearly for these features, as this is more than I've ever paid (or hoped to pay) for a bicycle helmet. But considering all the safety and quality, I say it's pricey but definitely worth it.

I bought this helmet after buying a cheaper Giro model (Syntax). Although the Syntax was fine, I felt it lacked ventilation. SInce I'm lucky enough to have a son with the same sized head, he got the almost new hand-me-down, and is thrilled with it. He's a casual rider, I'm a road enthusiast.

The Aether, as hoped, is extremely well ventilated. It's quite pricey, but if you catch the BTD sale, you can just justify the price for that high level of comfort.

Helmet fit is something that will vary by individual, as we all have rather different shaped heads, but I find the Giro fit to be the best among the brands I have tried. I measure right in the middle of the M range, and I can literally wear the helmet right out of the box! The RocLock system provides an excellent level of precise control over fit - so much better than the bad old days of placing multiple adhesive pads to try to get a decent fit.

I am so happy to have purchased my Giro Aether MIPS helmet from Bike Tires Direct at a great sale price. I would have missed out on this great helmet had it been selling at a higher price.

My head measurement is just slightly under the max recommended size for a medium helmet. The medium fits me perfectly. It has a slight amount of room before I ratchet it down a little to fit me perfectly snug.

My old helmet of another brand was too large for me in the first place. I always wore a sweatband on my head to capture sweat but mostly wore the sweatband so that my helmet would not slide around. It's so nice to have my new helmet fit me so perfectly where I don't need to wear a sweatband. The Giro Aether MIPS helmet does have its own thin sweatband on the front. It's really too thin to capture much sweat. I haven't read anything about its ability to channel sweat but it seems fair at doing so. I occasionally have sweat drop down onto my sunglasses but my sweat often channels off to the right and drips down past the far side of my right eye.

The ratcheting mechanism for tighteningloosening the helmet works nicely. I get a perfect fit. The helmet also feels cool and light as advertised.

One last thing - The fit system of my old helmet would sometimes push onto my glasses frame by the ears causing some irritation. I have no such issue with my new helmet. My new helmet fits and feels great.

I use this for road riding and am pleased with the helmet's performance (although I haven't tested it for it's intended purpose of crash protection). I like the ventilation at the front of the helmet, the air coming through the vents is very noticeable although it seems like the airflow over the back of my head is not quite as plentiful as on other helmets I own (Bell Zephyr, Giro Aeon). The fit is great for me (I wear a medium) and the roc loc system works well. This helmet seems to sit further down on my head than others and I like the additional coverage but it sits low enough that it interferes with one pair of sunglasses with larger frames. While I read they claimed it is less bulbous than it's predecessor, from a style perspective it still hews to the mushroom head look.

I have enjoyed the comfort of the Giro Foray mips helmet for sometime. However, when I recognized the technological advancement of the Giro Aether mips model, from a safety standpoint, the only logical conclusion was to purchase the Aether model.

Since purchasing the Aether model, I have worn this helmet dozens of times over hundreds of Colorado roads this summer. The Aether helmet is noticeably lighter and more comfortable than my Giro Foray helmet, yet fits snuggly with the adjustable wheel at the back of the helmet. As advertised, the flow through ventilation of the helmet has kept me cool, even on some hot afternoon rides.

When you read the advanced safety features of the Aether model mips design, you realize this is the design to wear, but hopefully never to depend upon. One problem with this helmet now I have to purchase the Aether helmet for the rest of my family cyclists.

I have enjoyed the comfort of the Giro Foray mips helmet for sometime. However, when I recognized the technological advancement of the Giro Aether mips model, from a safety standpoint, the only logical conclusion was to purchase the Aether model.

Since purchasing the Aether model, I have worn this helmet dozens of times over hundreds of Colorado roads this summer. The Aether helmet is noticeably lighter and more comfortable than my Giro Foray helmet, yet fits snuggly with the adjustable wheel at the back of the helmet. As advertised, the flow through ventilation of the helmet has kept me cool, even on some hot afternoon rides.

When you read the advanced safety features of the Aether model mips design, you realize this is the design to wear, but hopefully never to depend upon. One problem with this helmet now I have to purchase the Aether helmet for the rest of my family cyclists.

My previous helmet was in dire need of replacing so I started doing research for the best helmets of 2019. I was happy to find that Giro was on that list. The MIPS technology was a little new to me so I was a little confused about how it would fit and or work. Don't be afraid of it! I need to say this is the best fitting, most comfortable helmet I have ever used. The MIPS isn't even noticed. I'm also quite happy with the amount of airflow through it on to my head. I would highly recommend Giro helmets, but especially this Aether line.

I am an avid cyclist. My rides are long and often. I have not ridden with this helmet yet, but the size is perfect. I am between a medium and a large and chose the large for when I need extra warmth for my head. The retention system works great and is very easy to adjust. I highly recommend this helmet to anyone who is wanting a fantastic helmet.