Giro Aries Spherical Road Helmet
Cooler, lighter, faster – pick three. The all-new Aries™ Spherical is our most premium helmet ever. Its smaller form and lighter weight (only 265 grams in size medium, CE certification), delivers sensational comfort and cooling power. Spherical Technology™, the 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 Reinforcement Arch, while plush Ionic+ anti-microbial padding and a network of intricately engineered deep internal channeling 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.
Key Features:
- Spherical Technology™
- Mips® Brain Protection System
- Progressive Layering
- Nanobead EPS foam
- AURA Reinforcement Arch
- In-mold construction
- 24 vents and deep internal channeling
- Full lower hardbody coverage
- Ionic+™ anti-microbial padding
CONSTRUCTION
- In-mold construction
- Full lower hardbody coverage
FIT SYSTEM
- Roc Loc® 5+ Air
VENTILATION
- 24 vents and deep internal channeling
SUPER FIT™ SIZES
- S 20”–21.75” / 51–55cm
- M 21.75”–23.25” / 55–59cm
- L 23.25”–24.75” / 59–63cm
WEIGHT
- 275 grams (size M, CPSC)
- 265 grams (size M, CE)
Occasionally, without notice, manufacturers change product design and/or specifications.
Giro Helmet Size Guide
How to measure your head size
To find the circumference of your head, place a tape measure in the centre of your forehead, wrap it around above your ears and around the back of your head. If there's a slight difference between two different sizes, always go for the tighter size.
Giro cycling helmets are adjustable so will fit a range of head sizes. Once you know the circumference of your head, select an appropriate helmet size. For example, if your measurement is 57cm then a size M (55-59cm) or a One Size (54-61cm) will fit you.
Giro Men’s or Unisex Helmet Size Chart
|
Helmet Size |
Head Circumference cm |
|
One Size |
54 – 61 |
|
Small |
51 – 56 |
|
Medium |
55 – 59 |
|
Large |
59 - 63 |
|
Extra Large (selected models) |
61 - 65 |
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