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The Giro Aries Cycling Helmet is your ultimate riding companion, offering protection without compromising comfort.
The Giro Aries Cycling Helmet is your ultimate riding companion, offering protection without compromising comfort.
Giro

Giro Aries Spherical Road Cycling Helmet - Matte White

£289.99
Size Guide
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 White

Season:SP25

Brand:Giro

Code:35918-067

The Giro Aries Spherical Helmet redefines performance, combining cutting-edge protection, lightweight design, and superior ventilation. Weighing just 270g (size medium, CE-certified), this helmet offers unmatched comfort and cooling while delivering MIPS®-powered Spherical Technology for advanced impact protection. Engineered for elite riders, the Aries Spherical is the ultimate choice for road cyclists seeking state-of-the-art aerodynamics, cooling, and safety.

Unparalleled Safety & Impact Protection

Spherical Technology™ Powered by MIPS®: A ball-and-socket design that helps redirect impact forces away from the brain, reducing rotational energy in crashes.

Progressive Layering™ EPS Foam: Dual-density Nanobead EPS foam provides enhanced energy absorption for both high- and low-speed impacts.

AURA II Reinforcement Arch: A shatter-resistant translucent arch strengthens the helmet while enabling maximum airflow.

Virginia Tech #1 Safety Ranking: Rated 5 stars and ranked #1 by Virginia Tech’s independent helmet safety tests, making it one of the best road cycling helmets for reducing injury risk.

Maximum Cooling & Sweat Management

24 Wind Tunnel™ Vents: Strategically placed vents and deep internal channeling allow fresh air to circulate while pushing heat and moisture out.

DryCore™ Sweat Management System: Silicone bead technology redirects sweat away from your brow, keeping your vision clear and eliminating distractions.

Deep Internal Channeling: Optimised airflow moves cool air over your scalp for maximum cooling power.

Supreme Fit, Comfort & Performance

Roc Loc® 5+ Air Fit System: Micro-adjustable fit system that enhances comfort, stability, and ventilation with one-handed adjustability.

Ionic+® Anti-Odor Padding: Infused with pure silver, providing permanent, natural odour protection to keep your helmet fresh.

Eyewear Docking Ports: Integrated rubberised grippers keep your sunglasses securely in place.

Reflective Details: Enhances visibility in low-light conditions, improving safety for early-morning or night rides.

  • Ultra-lightweight & aerodynamic
  • MIPS®-powered Spherical Technology for maximum protection
  • #1 safety-rated road cycling helmet by Virginia Tech
  • 24 Wind Tunnel™ vents & deep internal channeling for superior cooling
  • DryCore™ sweat management system for distraction-free riding
  • Roc Loc® 5+ Air fit system for a customised, secure fit

Designed for road cyclists who demand the best in safety, comfort, and performance, the Giro Aries Spherical is your ultimate riding companion.

  • CE EN 1078
  • 265 gr. (size M)
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
S52 - 55.5cm
M55.5 - 59cm
L59 - 62.5cm
XL62.5 - 65cm
Professional Opinion
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