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Giro Aries Spherical Bike Helmet

  • Based on 46 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Bike bling

Arrives Sep 20 – Sep 24
Order within 11 hours and 40 minutes
Available payment plans shown during checkout

Color: Matte White


Size: Medium


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: Medium


Special Feature: adjustable


Brand: ‎Giro


Color: ‎Matte White


Age Range (Description): ‎Adult


Size: ‎Medium


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


UPC: ‎196178248259


Item Package Dimensions L x W x H: ‎11.81 x 9.57 x 7.56 inches


Package Weight: ‎0.6 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: ‎7149832


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 20 – Sep 24

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


  • Adjustable and comfortable Gravel Helmet
Color: Matte White Size: Medium
I bought this to replace my Smith Trace helment that took a nasty ding in a fall - sadly Smith has changed its design to eleminate the strap adjustment under the ear. Thankfully, Giro still has that - and its number one safety-rated. Very comfortable fit, keeps the sweat away and is perfect for my gravel adventures. ... show more
Reviewed in the United States on July 6, 2025 by Englishman At Bay

  • initial impressions - very nice helmet - fits like a glove
Color: Matte White Size: Medium
It is very light, looks great, and fits as good - if not better - than any other helmet I have worn. Note: I also have a fairly new Giro Agilis which does NOT fit as well as this new Aeries. Also has the best adjustment mechanism of any of my helmets. However, it IS expensive. This is the first time I have paid $300+ bucks for a helmet. ... show more
Reviewed in the United States on July 6, 2024 by F. Kirk

  • As Advertised
Color: Matte White Size: Medium
Have always been a fan of Giro helmets and this one does not disappoint. Very comfortable, you don't even know it is there. Good ventilation, works well with a cycling cap as well, adjustment/retention system is top notch. The only "niggle" I have is with the strap length and closure. This has been common to all Giro helmets I've had, the strap is about an inch too short. It's ok but I'm right at the limit. I guess the good part is no extra strap end to secure, or trim so it's not flapping around but I couldn't make it any loser if I tried. The other "niggle" is I've had other helmets with a magnetic closure vs. the traditional buckle and I prefer the magnetic closure. I suppose the buckle may be more secure, and cheaper, but still like the one handed convenience of the magnetic closure. ... show more
Reviewed in the United States on October 6, 2024 by mainediver218

  • Great fit, but the chin strap buckle is a nightmare!
Color: Matte White Size: Medium
Love the fit of this helmet (I measured my head per instructions prior to purchase). Straps are easily adjusted, and the boa (knob) on the back can be tightened to a comfortably snug fit. HOWEVER… unbuckling the chin strap is nearly impossible. I have to squeeze as hard as my fingers are capable of to undo the buckle, and it takes me multiple tries. Very frustrating! So, buyer beware!! (Therefore 4, not 5, stars.) ... show more
Reviewed in the United States on March 17, 2025 by SkiGirl

  • Replacement for Giro Atmos
Color: Matte White Size: Medium
My 10 year old Atmos finally broke so I purchased a size medium Aries. I am really impressed with the fit and comfort. The fit feel is similar to a more encompassing helmet (ski helmet) with more contact area and no pressure points. The weight is 278g (sticker says 280g) vs. 254g for medium Atmos. I consider the slight increase a good trade off for the improved safety. The MIPS / spherical system is very well incorporated in the helmet with no significant increase in profile. ... show more
Reviewed in the United States on January 21, 2024 by S. Ocheltree

  • Fantastic Helmet
Color: Matte White Size: Medium
My favorite helmet, especially for hot weather.
Reviewed in the United States on August 12, 2025 by Wavedebb

  • Security and price.
Color: Matte White Size: Medium
After an severe accident I have to change my helmet and in regard to the job the previous made , I take another one (exact same helmet) Thank's GIRO
Reviewed in the United States on May 7, 2024 by VERZENI Gérard

  • Lightweight and good airflow
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. ... show more
Reviewed in the United States on July 30, 2023 by Tony

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