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Apparel / Helmets / Road Helmets
Giro Aether Spherical MIPS Helmet Matte True Spruce/Black Fade
Giro Aether Spherical MIPS Helmet Matte True Spruce/Black Fade
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Giro Aether Spherical MIPS Helmet Matte True Spruce/Black Fade
Giro Aether Spherical MIPS Helmet Matte True Spruce/Black Fade

Aether Spherical MIPS Helmet

Mfg PartNum:
SALE: $225.00-$240.00
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Performance Innovation.

The Giro Aether MIPS Helmet marks a revolutionary leap forward in rotational energy management. Inside the Aether, a dual-density EPS foam liner helps manage a wide range of impact energies, while also boasting deep internal channeling to provide cooling airflow. Giro's proprietary MIPS® Spherical technology is integrated between the layers of EPS foam - instead of against the rider's head - giving riders the benefits of MIPS without obstruction to comfort or cooling power.

The stunning silhouette is formed by a sleek six-piece shell that surrounds a series of massive vents, with added structural reinforcement via a shatter-resistant AURA reinforcing arch. The final touch is the Roc Loc 5+ Air fit system, featuring 3-way fit tuning, that allows for easy adjustment in seconds.


  • Sleek road helmet with 11 vents and Wind Tunnel internal channeling for optimal comfort and breathability.
  • Shatterproof Roll Cage "Halo" Reinforcement.
  • MIPS Spherical technology shifts the MIPS system between the EPS foam, rather than next to the skin.
  • Featherweight webbing with Slimline Buckle.
  • Sunglass docking ports in front vents.
  • Ponytail compatible.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Giro Aether Spherical MIPS Helmet
Other styles of this product are available.
SALE: $300.00

Certification: Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older 

Mfg PartNum: 7099520 

Matte Black - Small

Mfg PartNum: 7098122 

Matte Black - Medium

Mfg PartNum: 7098123 

Matte Black - Large

Mfg PartNum: 7098124 

Matte White/Silver - Small

Mfg PartNum: 7099546 

Matte White/Silver - Medium

Mfg PartNum: 7099547 

Matte White/Silver - Large

Mfg PartNum: 7099548 

Matte Bright Red/Dark Red - Small

Mfg PartNum: 7099510 

Matte Bright Red/Dark Red - Medium

Mfg PartNum: 7099511 

Matte Bright Red/Dark Red - Large

Mfg PartNum: 7099512 

Matte Portaro Grey/White/Red - Small

Mfg PartNum: 7129104 

Matte Portaro Grey/White/Red - Medium

Mfg PartNum: 7129105 

Matte Portaro Grey/White/Red - Large

Mfg PartNum: 7129106 

Matte Black Fade/Highlight Yellow - Small

Mfg PartNum: 7129095 

Matte Black Fade/Highlight Yellow - Medium

Mfg PartNum: 7129096 

Matte Black Fade/Highlight Yellow - Large

Mfg PartNum: 7129097 

Ano Green/Highlight Yellow - Small

Mfg PartNum: 7129086 

Ano Green/Highlight Yellow - Medium

Mfg PartNum: 7129087 

Ano Green/Highlight Yellow - Large

Mfg PartNum: 7129088 

Black Flash - Small

Mfg PartNum: 7099492 

Black Flash - Medium

Mfg PartNum: 7099493 

Black Flash - Large

Mfg PartNum: 7099494 

Highlight Yellow/Black - Small

Mfg PartNum: 7099483 

Highlight Yellow/Black - Medium

Mfg PartNum: 7099484 

Highlight Yellow/Black - Large

Mfg PartNum: 7099485 

Matte True Spruce/Black Fade - Small

Mfg PartNum: 7112700 

Matte True Spruce/Black Fade - Medium

Mfg PartNum: 7112701 

Matte True Spruce/Black Fade - Large

Mfg PartNum: 7112702 

Matte Black / White / Bright Red - Small

Mfg PartNum: 7140143 

Matte Black / White / Bright Red - Medium

Mfg PartNum: 7140144 

Matte Black / White / Bright Red - Large

Mfg PartNum: 7140145 

Matte Ano Blue - Small

Mfg PartNum: 7140140 

Matte Ano Blue - Medium

Mfg PartNum: 7140141 

Matte Ano Blue - Large

Mfg PartNum: 7140142 

Matte Charcoal Mica - Small

Mfg PartNum: 7140146 

Matte Charcoal Mica - Medium

Mfg PartNum: 7140147 

Matte Charcoal Mica - Large

Mfg PartNum: 7140148 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Fits great and feels comfortable.
by Anonymous
Cycling Enthusiast
Metro Atlanta hot and humid.

My head , somewhat like a softened rectangle rather than round, has alway fit better in Giro helmets (Atmos, Aeon) rather than Bell helmets. The Aether maintains that same feel. Unsure about the real value of MIPS when my head would always slide around a little inside the helmet anyway and would be much more comfortable paying $100 less but the helmet feels great.

Reviewed 10/11/2021
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by Mark

I've been wearing Lance era Giros since uh, Lance. They've always fit great compared to other brands so I've stuck with them. This is the first "different" model for me, and holy cow! It fits soooo much better than my last Giro. I've had broken retention systems in the past, called them, and replacement parts sent to me no hassle. Good company and great products!

Reviewed 9/20/2021
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Best fitting and comfortable helmet ever
by Mike Fisher
New Orleans, LA

I am training for a hot weather IM and have worn the helmet on several 100 mile rides. It is extremely lightweight with a very good airflow. I highly recommend this helmet for long distance rides

Reviewed 9/9/2021
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Must to have it!
by Kargado Cycling
Los Angeles

Very Comfy and A lot of vent.

Reviewed 9/27/2021
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Giro always fit my small but this model squeezes above my ears too doggone tight.
by Retiredandlovingit

It's like my heads too round for it or the size small helmet design has changed. The thin sweat rag I have to wear in summer seems to soften the discomfort experienced. Maybe with cooler temps my head won't expand as much and the Giro comfort will return.

Reviewed 8/12/2021
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An Excellent Helmet
by Lexington biker
Cycling Enthusiast
Lexington, MA

I am a recreational road rider, with most rides in the 20 to 30 mile range, and occasionally twice that. I like the lightness, ventilation, and compactness of this helmet. Even on sale, it is not cheap, but it looks great and fits my head very well. Over the last 15 years, I have used both high end Giro helmets and Laser Helmets. For a number of years Laser had a definite edge in fit and comfort, but now I prefer the Aether. I think the big difference is how the helmets handle the MIPs technology. I find that many MIPs helmets exert a wierd torque on my hair. Aether does not.

Reviewed 4/5/2021
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Excellent Helmet!
by AG88
Cycling Enthusiast
St. Louis, MO
3 of 3 customers found this review helpful.

I have used Giro helmets for years, the recent being an Atmos. I really like the Aether. The adjustments are very good and easy to make. It is very comfortable and light. I like the new safety features, which is why I upgraded...it had been about 8 years since I had a new helmet and my wife was suggesting I get up to speed with the new technology to protect my head.

I would highly recommend this helmet. Expensive, but when one considers the importance of head and brain safety, it was worth the spend!

Reviewed 2/22/2021
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Good looking helmet and a custom fit
by Anonymous
Cycling Enthusiast
Greenville SC
2 of 2 customers found this review helpful.

This helmet is high quality and fits really well. If you havent used a MIPS helmet it's a tad larger on the sides than the older style Giro I had for years, but it looks great and is not noticeably different in size while riding. It sits lower around the brow area so it can apply slight pressure to your riding glasses, but not a big deal at all after adjusting for it. Now other riders helmets appear to sit too high on the head I have noticed. Great rubber grippy spot to put your riding glasses if out near dark. I would purchase this helmet again.

Reviewed 2/22/2021
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Great comfortable helmet
by PhxStar
6 of 6 customers found this review helpful.

Is there a helmet more awesome than a Synthe? The Aether is it. Super comfortable, lite, and ventilated. I held off buying a first gen MIPS helmet so I can't compare, but the Aether is the best helmet I have owned.

Reviewed 1/31/2019
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Exceptional Helmet
by MasterGunny
Cycling Enthusiast
Marfa, TX
9 of 9 customers found this review helpful.

Put it though the paces last week with a 36-miler and today with a 100K (cold, wet miserable ride)....perfect fit and extremely light, great ventilation coupled with solid aerodynamics. My ONLY compliant, this is the only high end helmet (yes, at this price point...it is high end) out of too many to count in the past 3-years that DID NOT come with replacement sweat pads.....Come on Giro...

Reviewed 10/20/2018
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Lightweight, great fit, nice updates!!!
by KeithD
Cycling Enthusiast
Arlington Heights, Illinois
1 of 1 customers found this review helpful.

A bit expensive........? Yes! TOTALLY WORTH IT!!!!!!!!!!!!!!!. This is going to protect you to the max and THAT is the best investment you can make in a a helmet. This one is top of the game: lightweight, max protection, easy adjustability, pony tail clearance, mine is the flat black with light reflection so cars can see you better............good looking. This is the helmet for me.........

Reviewed 6/28/2021
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Excellent helmet - incremental improvement from last one
by TimT
Cycling Enthusiast
4 of 5 customers found this review helpful.

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.

Reviewed 10/19/2020
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Probably saved my life
by Anonymous

On a group gravel ride and was going over a cattleguard when the front tire went into the vertical slits and sent me over the handlebars and onto my head and shoulder. The helmet took quite a shot and I ended up with a blackeye but that was the worst thing that happened to my head. To top it off Giro gave me xx% off a new helmet.

Reviewed 5/7/2021
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Well ventilated, good looking, but a more difficult fit and allows more sweat down the face
by JonJ
Cycling Enthusiast
Brenham, TX
1 of 1 customers found this review helpful.

Pros: Well ventilated, cutting-edge MIPS, good looks, great straps and adjustments

Cons: Difficult to fit versus prior Giros, allows sweat down the forehead.

I used the sizing chart as recommended given the different MIPS design and it said medium. Medium felt tight at the rear sides of my head -- like a flat spot pushing against the helmet. Tried large but it was HUGE on my head. I ended up with the medium -- very snug, almost too tight, but when I ride I do not notice this. I wear large in other helmets with no issues. The fit of this one is DIFFERENT, so hopefully it fits you better than me.

The front padding is from temple to temple which is nice but it is very thin. It takes very little sweating to saturate the pad and have sweat running down your forehead even with wearing a thicker skullcap such as Headsweats. This is much more of a problem with this helmet than any of my other helmets.

Summary: nice looking helmet with great tech and features, but the fit is more difficult and the front padding is not as absorbent and allows more sweat down the forehead -- perhaps a function of the tighter fit of the helmet on my head.

Reviewed 8/12/2020
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Cool and Comfortable
by Luvs2Bike
Cycling Enthusiast
San Antonio, TX
3 of 3 customers found this review helpful.

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!!!!

Reviewed 5/27/2020
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Nice upgrade over the Synthe
by Joe
Cycling Enthusiast
Vancouver, wa
2 of 2 customers found this review helpful.

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.

Reviewed 5/11/2020
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This is a GREAT helmet
by Billmars04
Cycling Enthusiast
Sacramento, CA
2 of 2 customers found this review helpful.

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.

Reviewed 3/19/2020
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Best Helmet to date from Giro!
by ForGreaterGood
Cycling Enthusiast
Hawaii and Iowa
1 of 1 customers found this review helpful.

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.

Reviewed 2/18/2020
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Best helmet I've every owned
by BikerBoy
Cycling Enthusiast
Novato, CA
2 of 2 customers found this review helpful.

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.

Reviewed 2/14/2020
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Aether MIPS - Pretty slick helmet
by CB
Cycling Enthusiast
Austin, TX
2 of 2 customers found this review helpful.

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.

Reviewed 7/31/2019
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