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Giro Aries Spherical Bike Helmet

  • Based on 29 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Backcountry

Arrives Sep 19 – Sep 21
Order within 3 hours and 14 minutes
Available payment plans shown during checkout

Color: Matte White


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 (~5% lighter than Aether), impressive cooling power and sleek, compact shape would not be possible without AURA II.
  • Spherical Technology - This unique ball-and-socket design, powered by Mips, helps redirect impact forces. Spherical Technology also boasts more comfort, improved airflow, and Progressive Layering (which mates two densities of EPS foam to address a wide range of impact energy). The results are clear: independent authority Virginia Tech has rated Aries #1 in reducing the risk of injury.
  • 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 rider's 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 from the forehead and to the temples, where it can evaporate more easily
  • 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 doesn't sacrifice speed, reducing aerodynamic drag by 4% over Aether Spherical.
  • Lighter, cooler, sleeker, plus all the added protection of spherical technology powered by MIPS and our new DryCore Sweat Management System: The Aries Spherical is like nothing before.

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, Giro's ball-and-socket design powered by Mips, adds protection by redirecting energy away from the head 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 White


Age Range (Description): Adult


Size: Large


Special Feature: adjustable


Brand: ‎Giro


Color: ‎Matte White


Age Range (Description): ‎Adult


Size: ‎Large


Special Feature: ‎adjustable


Model Name: ‎Aries Spherical


Outer Material: ‎Polycarbonate (PC)


Recommended Uses For Product: ‎Cycling


Item dimensions L x W x H: ‎8 x 8 x 8 inches


Athlete: ‎cycling


Inner Material: ‎Expanded Polystyrene


Item Weight: ‎10 Ounces


Style: ‎Streamlined, Performance-Oriented


UPC: ‎196178248266


Item Package Dimensions L x W x H: ‎11.81 x 9.53 x 7.52 inches


Package Weight: ‎0.71 Kilograms


Item Dimensions LxWxH: ‎8 x 8 x 8 inches


Brand Name: ‎Giro


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.


Material: ‎Polycarbonate


Suggested Users: ‎unisex


Number of Items: ‎1


Manufacturer: ‎Giro


Part Number: ‎7149833


Included Components: ‎Bike Helmet


Sport Type: ‎Cycling


Date First Available: October 12, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 19 – Sep 21

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.

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Top Amazon Reviews


  • One of the top-rated road helmets by Virginia Tech.
Color: Matte White Size: Large
Whenever shopping for helmets, I always narrow the field by going to Virginia Tech's helmet testing database to narrow the field. I was hoping to find a similar situation to my MTB helmet, where there were more affordable top performers (price is not always an indicator of performance). Unfortunately, that is not the case with road helmets, but this helmet IS a top performer. I bought it to replace my Giro Savant. This model actually fits even better, though that will be different from person to person, as we all have different-shaped heads (some brands I cannot wear at all). Anyhow, the ventilation is even better AND... this may be a silly thing, but it's easier to scratch my head with this helmet, and I also feel like bees/hornets etc. would be less likely to get stuck in this design. Well done, Giro! ... show more
Reviewed in the United States on June 6, 2025 by Shewhorn

  • Best of the best according to testing, lives up to comfort expectations
Color: Matte White Size: Large
I wear it for 30-45 miles every saturday in south FL and I could not be more pleasantly surprised about how cool it is. My head barely sweats and the bands catch it all. It's def lightweight. The straps can be awkward at times and the plastic adjustor knob in the back can dig into my neck if it's too tight, my head is bent up too far, or it's not forward on my head enough but I blame myself for that. I'm glad I went with this based on the safety ratings. I wanted the best of the best. Bought one for myself and one for my wife. My friend got a cheap one with a light on the back and a magnetic visor and I can't lie...I'm jealous of the visor attachment. ... show more
Reviewed in the United States on April 20, 2025 by Stebs

  • Great helment, but that price is hard to take
Color: Matte White Size: Large
I ended up buying one for my wife and one for me. They are absolutely the best helmet either one of us has owned. Thankfully, the safety aspect hasn't been tested yet. But the fit is just awesome. The vents on this thing are outstanding, I'm not sure you can get better heat dissipation in a bike helmet. The pads are easy enough to take out and wash when they get sweaty. It came with an extra set of pads but I ordered some extra ones anyway. The pads have held up well going through the wash. For me the only negative thing about the helmet is the price - I'm glad I was able to get them, but that $300 each was a tough sell. If you don't choke on the price, these are really awesome helmets. We've used them for one full riding season now, they have performed quite well. I'm really glad I got them ... show more
Reviewed in the United States on February 6, 2025 by Axil

  • Protected me well in a head on crash!
Color: Matte White Size: Large
Forget about whether the helmet is aero, comfortable, attractive to look at, ultimately it has one job and one job only which is to protect the head of the rider. Yesterday during a descent, I came off the road and it a tree. As can be seen in the photo the helmet took a lot of bruising with multiple dents etc. Fortunately it protected my head really well. I will now buy the same one! ... show more
Reviewed in the United States on August 19, 2024 by Carlos Carlos

  • FABulous airflow
Color: Matte White Size: Large
Only realized earlier this year that helmets are “one and done” - you take a fall, and even though you don’t think you hit your head and you don’t see any damage to the helmet, you REPLACE IT. Took a fall a couple of years ago, when I found out you should replace your helmet, I did. The airflow on this helmet is by far the breeziest I’ve ever had. Easy to adjust for fit - just have to be sure to turn my cap around backwards because this offers great frontal protection. MIPS - not sure I want to know what that means, but the theory is that it adds to protection. I’ll buy that. ... show more
Reviewed in the United States on July 20, 2023 by D. Earls

  • It is too small
Color: Matte White Size: Large
I have used Giro helmets for decades. I always buy large and they always fit my large head (7.5-7.75" cap size). I ordered this helmet and was very disappointed to find out it runs small and does not fit my head. First time for a Giro helmet. Wish it did fit because it seems very light weight and well vented. ... show more
Reviewed in the United States on April 17, 2024 by Joel S

  • Too Small
Color: Matte White Size: Large
I've had Giro Helmets for well over 20 years, cycling and ski helmets, always fit, always comfortable. I have a oval shaped head and this new design does not even come close to fitting me. No XL is available. Very, very uncomfortable, Bye Bye Giro. Sorry it came to this.
Reviewed in the United States on July 23, 2024 by JohnnyBeagle

  • Helmet looks great and fits perfect, Giro has a real winner here!
Color: Matte White Size: Large
This is a great helmet; it ticks all the boxes of what you would want in a helmet. Feels very lite on your head, strap system is simple and effective, airflow is excellent on hot days, looks very nice with good styling, spherical system is very cool and offers that extra layer of protection, fit and comfort are great. Another great product for Giro! ... show more
Reviewed in the United States on May 10, 2023 by Sean E. Moreau

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