Giro Aries Spherical Helmet: 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 the epitome of top-shelf performance, protection, and style.
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.
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. Its the best performing helmet theyve tested so far even out-performing much bigger, bulkier helmets at reducing risk.
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 from the forehead and to the temples, where it can evaporate more easily.






















Sarah Johnson –
The Giro Aries Spherical Helmet is a game-changer! The fit is snug yet comfortable, and the ventilation system keeps my head cool even on long rides. Highly recommend!
Michael Carter –
Great helmet! The spherical design provides excellent protection, and the lightweight construction makes it easy to wear for hours. A must-have for serious cyclists.
Emily Davis –
I love the sleek design of the Giro Aries. The adjustable fit system ensures a perfect fit, and the helmet feels very secure. Worth every penny!
David Smith –
The ventilation on this helmet is fantastic. It keeps me cool and comfortable even on hot days. The build quality is top-notch too.
Lisa Brown –
I’ve been using the Giro Aries for a few weeks now, and it’s been great. The fit is perfect, and it’s very comfortable. The only downside is the price, but you get what you pay for.
James Wilson –
This helmet is very lightweight and well-ventilated. The spherical design is innovative and offers great protection. I’m very happy with my purchase.
Jessica Martinez –
The Giro Aries is a solid helmet. It fits well and is comfortable to wear. The only issue I have is that it’s a bit bulky, but overall it’s a great product.
Robert Anderson –
I’ve tried many helmets, but the Giro Aries stands out. The design is excellent, and it provides great protection. The ventilation is superb, making it a joy to wear.
Karen White –
This helmet is very comfortable and provides excellent protection. The fit is adjustable, and the ventilation is great. Highly recommend it for any cyclist.
William Taylor –
The Giro Aries is a high-quality helmet. It’s lightweight, well-ventilated, and provides excellent protection. I’m very satisfied with my purchase.
Amanda Garcia –
I’m impressed with the Giro Aries. The helmet is comfortable, secure, and well-ventilated. The design is also very stylish. Definitely a great investment.