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Availability:
Only 2 left in stock, order soon!
Arrives
Saturday, Oct 3
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Color: Matte Sharkskin
Size: Large
Features
- Structural Integrity: The proprietary AURA II Reinforcement Arch makes everything possible. These shatter-resistant, translucent twin bridges run throughout the helmet, providing structural integrity without adding unnecessary weight. Aries ultra-low weight, impressive cooling power and sleek, compact shape would not be possible without AURA II.
- Spherical Technology And Mips Protection System: Ball-and-Socket Design, powered by MIPS, redirects impact forces without compromising comfort, ventilation, weight or style. The market-leading protection system designed to address rotational motion, for an added measure of protection in certain impacts.
- Cool Comfort: Deep internal channels connect with Aries massive front and rear vents. This system provides a path for cool air to flow over the riders scalp and exit the rear, taking excess heat with it. Aries also debuts our revolutionary DryCore sweat management system. A soft, silicone bead is hidden within the plush brow pad that redirects sweat away where it can evaporate more easily. 21 Wind tunnel vents.
- Streamlined Speed: When it comes to going fast, smaller truly is better. To craft Aries, we focused on reducing the frontal surface area to eliminate more drag. Add in tiny details like chamfered edges on the AURA II, and meticulously engineered internal channeling that actually speeds up the air as it exits the helmet, and Aries emerges as the climbing helmet that doesnt sacrifice speed.
- Reflective Details And Eyewear Docking Ports: Reflective Details enhance visibility at nighttime or in low-light conditions when illuminated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. Integrated eyewear docking ports with rubber grippers help to secure sunglasses.
Description
A helmet that feels like it isn't there: the all-new Aries™ Spherical is like nothing before. Its sleeker form and lighter weight (only 270 grams in size medium, CE certification), deliver sensational comfort and cooling power. Spherical Technology™, our ball-and-socket design powered by Mips®, adds protection by redirecting energy away from the brain in certain impacts, and Progressive Layering with dual densities of Nanobead EPS foam adds more comprehensive energy management. 24 Wind Tunnel vents are maximized by the AURA II Reinforcement Arch, while a plush DryCore™ brow pad manages sweat and combines with a network of intricately engineered deep internal channeling to elevate comfort. From the proven reliability and adjustability of the Roc Loc® 5+ Air fit system, to full lower hardbody coverage to enhance durability, to the meticulous production quality, the Aries is state-of-the-art performance, protection, and style.
Brand: Giro
Color: Matte Sharkskin
Age Range (Description): Adult
Size: Large
Special Feature: adjustable
Brand Name: Giro
Age Range Description: Adult
Model Name: Aries Spherical
Unit Count: 1 Count
UPC: 196178177412
Number of Items: 1
Included Components: Bike Helmet
Item Type Name: Bike Helmet
Manufacturer: Giro
Model Number: Giro
Manufacturer Part Number: 7159019
Warranty Description: Any Giro helmet determined by Giro to be defective in materials or workmanship within one (1) year from the date of original purchase will be repaired or replaced, at Giro’s option, free of charge when received at the factory freight prepaid, together with proof of purchase.
Size: Large
Item Dimensions: 10 x 6 x 8 inches
Item Weight: 8 ounces
Color: Matte Sharkskin
Product Style: Sporty
Outer Material: Polycarbonate (PC)
Inner Material: Expanded Polystyrene
Recommended Uses For Product: Cycling
Additional Features: adjustable
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Oct 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: Matte Ano Blue
Size: Large
Reviewing a bike helmet is inherently subjective, but buying one online can feel like taking a shot in the dark. So I will try to offer some points to consider, as objectively as I can. TL;DNR: the Aires is a very high quality helmet that I think can be adjusted to fit most heads comfortably, as long as you start with the right size. My size large Aries weighs 311 grams, which is almost exactly what Giro specifies (310 grams), but 40 grams more than my old (too old, I know) Giro Atmos. That is the price you pay for the latest rotational protection systems, like Giro's MIPS Spherical technology. It's a fair trade-off, I think, for the highest safety ranking of any helmet tested by Virginia Tech's lab. My last two Giro helmets were size medium and fit well on my 59 centimeter oval-shaped head. But, with the Aires, I had to size up to large. The fit seems narrower than my previous Giro helmets, especially on the sides of the occipital lobe, but the large size was easily adjusted to fit comfortably. Not "like wearing nothing at all," but comfortable, with no pressure points. The vertical height adjustment of the RocLok retention system, which is designed primarily to level the helmet correctly, also made a noticeable difference in comfort. In sum, if you fall between sizes, be prepared to size up. When riding with your eyes looking straight ahead, the ventilation is very good, especially across the top of the head. If you tilt your head down so you're looking at the front wheel, it is fantastic. And the Drycore brow pad really works to keep the sweat from dripping into your eyes. I was amazed how much difference these two features make on summer rides in the southern California desert where I live. In the past, after an hour and a half in 90 to 100 degree heat, when I was wearing my Atmos, my face would be beet red, and I often felt light-headed. The Aries is a remarkable improvement, and has reduced my cool-down time from twenty minutes to five. I was worried that the brow band would feel hot, but that is not the case, probably because the rest of the forehead is so well ventilated. I chose the Matte Ano Blue color, which I suspect is one of the least popular. But I think it looks great in person, and is light enough and bright enough to rival or exceed white for visibility and heat reflectivity from the shell. As an aside, the helmet I received was likely a prior return (part of the box was missing), and I am fine with that. I think it's a fair trade-off for being able to exchange my original order for the larger size.
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Reviewed in the United States on August 16, 2023 by C. Bennett
Color: Matte Ano Blue
Size: Medium
First, I’m bad about replacing helmets every 5 years. Prior to purchasing this blue Giro Aries, I’d been using a Giro Aeon since 2014. Even though I wanted a helmet with MIPS, I couldn’t find any close in weight and ventilation to the Aeon. But it was time for an upgrade regardless of weight increases. My Aries was supposed to be delivered Tuesday, but instead was delivered later on Saturday. Not exactly PRIME shipping speed. But the helmet? Wow! Besides currently being rated as the #1 helmet in VaTech’s bicycle helmet safety ratings, the helmet is a vast improvement over the Aeon. Yes, it’s a little heavier than the Aeon, but not neck straining heavy. As for the ventilation and silicone sweat strip? Amazing! Being a lifelong Floridian, today’s sunrise ride involved 91% humidity with an actual temperature of 79F and a heat index of 87F. I’m a naturally sweaty person. I’m talking coming home completely soaked from just a November gathering with several games of corn hole. Today was a quite the soggy atmosphere for a ride. Anyway, the ventilation is noticeably improved across all areas of the helmet as compared the the long discontinued Aeon. And the anti-sweat strip? Not once…I repeat…not once did I have to do a helmet squeeze. Days like today usually involve a helmet squeeze every mile after a 15 minute warmup. No sweat dripping like a leaky faucet from the front of the helmet either. Yes, I still had to use my finger to squeegee my brow every mile, but that is far less inconvenient than leaning to one side and mashing my helmet into my forehead. I could wring my shirt out from all of the sweat, but this helmet didn’t require a single helmet squeeze during an hour long 17 MPH ride. The helmet fits my head like a glove as well. The new tensioner is an improvement over the Aeon as well. The Aeon clicked as the helmet tensioner was turned, which would result in steps of more tension. The new system is a continuous and smooth increase in tension as the dial is turned. No more “almost perfect” tension. The new system adjust easily in both directions, but remains in place when the dial is no longer being turned. Giro out did themselves with this helmet! Yes, it’s an expensive helmet. But consider it a 5 year insurance policy on hopefully keeping your brain intact.
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Reviewed in the United States on July 30, 2023 by M. Daniel
Color: Matte Sharkskin
Size: Medium
Similar to another reviewer, I was reluctant to switch out of my Aeon helmet, which has been phenomenal for riding (especially climbing) in the hot SoCal weather (certainly the lightest and best vented helmet I have ever owned). After the very first ride, I was relieved to find out that, despite the complex construction, this vents very very well and it is so comfortable that the extra grams over the Aeon are not noticeable in any way. The last part cannot be overstated enough in my case: the Aeon was wicked comfortable, yet this one is somehow better and has that "forget it's there" quality to it even after 4hr+ rides. It wraps around your head, yet it does not have the "pumpkin head" look. The only possible issue might be the integration with certain sunglasses: there is little margin for error before some arms may start rubbing the bottom. I ride with Sutro Lights and the integration is perfect to the point of not being able to tip the helmet much to the front or to the back. On the bright side, that forces you to wear it correctly. There have been zero issues after 6-700 miles and I hope it stays that way. The fact that it received the highest safety rating by Virginia Tech of any cycling helmet is reason enough to pick this over anything else, but throw in great comfort, great looks, and great ventilation, and this becomes a no-brainer. I am very very happy with it.
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Reviewed in the United States on September 13, 2024 by AP
Color: Matte White-GR
Size: Large
Have cycled with Chiro helmets ever since they were founded back in the 1980s. Their design, comfort and weight have always been at the forefront of Cycling helmet design.
Reviewed in the United States on July 16, 2026 by BP
Color: Matte White
Size: Medium
This helmet feels good on top, very light, has good airflow, and sits well. The sacrifice for it to be so lightweight is that the frame that tightens around your head to secure it to the actual helmet is so insubstantial and flimsy that it allows too much induced movement. I feel like any force from a fall or otherwise to the helmet would make it slide and break right off the frame. This is only my guess. My biggest real complaint is that the straps aren't the easiest to adjust and the plastic feels like b-grade material, and either because of this or a bad placement in general, they don't feel comfortable when secure. The clip is standard prong insert and for a $300 helmet, that's kind of pathetic to be honest. The magnetic slide clips are way more comfortable and easier to use. If the company is pinching pennies on stuff like that in 2023, what else are they cutting corners on? I hope I never find out from a fall. Solid helmet, but for the price I have to say I don't think it's worth it.
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Reviewed in the United States on July 30, 2023 by Tony
Color: Matte White
Size: Large
This is my second helmet by Giro. The first was a Pneumo from way back. When it came time to replace my current helmet, I found that Virginia Tech had rated the Giro Aries at the top of the class for safety. It breathes well, feels light and fits my oval head well. Unfortunately it shares the same weakness that my old Pneumo did. After 18 months of regular use, the thin straps of the Roc Loc broke. It seems like a design issue. An email to Giro later and they offered to send me a replacement for free just like they did for my Pneumo. Great. Until 17 weeks later, they canceled the order because part is still unavailable. I don't know what is causing the parts shortage. But I'm still out a helmet and have had to get backup helmet in the meantime. I guess I'll have check back again later.
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Reviewed in the United States on July 16, 2026 by Nobody
Color: Matte Metallic Coal/Dusty Rose
Size: Large
I’ve had probably 10 bike helmets over my life and this is by far my favorite! It’s lightweight, covers my entire head and has air vents that do an amazing job of keeping my head cool! The helmet itself is incredibly comfortable and can easily be worn for hours on end with no pain! There’s also a sweat pad right on your forehead that does an incredible job of absorbing sweat and keeping it out of my eyes! Every 30 minutes I lean off the bike and press the helmet onto my forehead and a stream of sweat comes off. That’s my favorite feature on the helmet, not having sweat in my eyes! I would highly recommend this helmet! It’s pricey but you only get one brain!
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Reviewed in the United States on August 8, 2026 by Joseph Rojek
Color: Matte Ano Blue
Size: Small
Very comfortable, lightweight, easy to put on. Excellent air-flow for cooling.
Reviewed in the United States on June 28, 2026 by Abe Lincoln