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Giro Aries Spherical Road Cycling Helmet with Mips® – lightweight, aerodynamic helmet with advanced Spherical Technology, 24 Wind Tunnel vents, DryCore™ sweat management, and superior road cycling safety for elite performance and comfort.
Giro Aries Spherical Road Cycling Helmet with Mips® – lightweight, aerodynamic helmet with advanced Spherical Technology, 24 Wind Tunnel vents, DryCore™ sweat management, and superior road cycling safety for elite performance and comfort.
Giro

Giro Aries Spherical Road Cycling Helmet - Matte Black/White

£299.99
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Giro Aries Spherical Road Cycling Helmet - Matte Black/White

Season:SP26

Brand:Giro

Code:39360-A25

The Giro Aries Spherical Road Cycling Helmet is the ultimate lightweight, aerodynamic, and ventilated road cycling helmet designed for performance, safety, and all-day comfort. Featuring Spherical Technology powered by Mips®, the Aries redirects rotational forces in certain impacts, providing superior brain protection. At only 270 grams (medium, CE certified), this lightweight road bike helmet delivers exceptional comfort without sacrificing safety or style.

Optimised for road cyclists, competitive racers, and endurance riders, the Giro Aries Spherical Helmet combines 24 Wind Tunnel™ vents, deep internal channeling, and DryCore™ sweat management system to keep your head cool and sweat-free, even on the hottest rides. The Aura II Reinforcing Arch adds structural rigidity while maximising airflow, and Progressive Layering™ dual-density EPS foam manages energy from high- and low-speed impacts for comprehensive protection.

The Roc Loc® 5+ Air Fit System allows precise adjustment of fit tension and fore-aft tilt with one hand, while elevating airflow across the scalp for enhanced cooling. Integrated eyewear docking ports, reflective details for low-light visibility, and IONIC+® antimicrobial padding round out this high-performance road cycling helmet.

Whether you’re chasing fast group rides, endurance challenges, or competitive races, the Giro Aries Spherical Helmet combines cutting-edge aerodynamics, advanced Mips brain protection, lightweight construction, and premium comfort in one sleek, race-ready package.

Technical Information
Certifications & Weight
  • CE EN 1078
  • 265 gr. (size M)
Material Composition
  • 43% EPS, 30% PC, 11% Nylon, 4% Polyester, 2% POM, 3% PU, 3% Fiberglass, 1% Silicone
Sizing Information

These size charts and conversions are meant to serve as a guide. Giro recommend you try-on before riding to ensure full comfort and performance.

Bike Helmet Size Guide

How to measure your size – Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide. Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

For helmets equipped with MIPS technology, please review the following warning: SOME MIPS® LOW-FRICTION LAYERS, ALONG WITH OTHER PARTS OF A HELMET, MIGHT CAUSE LACERATIONS TO THE WEARER’S HEAD/FACE IN SOME ACCIDENTS. THIS MIGHT OCCUR DUE TO THE HIGH PRESSURE ON THE SCALP FROM THE IMPACT OR AS A BY-PRODUCT OF THE LOW-FRICTION LAYER’S MOVEMENT IN CERTAIN ANGLED IMPACTS TO HELP REDUCE THE ROTATIONAL ENERGIES TO THE HEAD. IF YOU WOULD LIKE FURTHER INFORMATION, PLEASE CONTACT US.

Adult SizeCircumference
S51 - 55cm
M55 - 59cm
L59 - 63cm
Professional Opinion
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