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.

CONSTRUCTION
- IN-MOLD POLYCARBONATE SHELL WITH EPS LINER
- FULL LOWER HARDBODY COVERAGE

VENTILATION
- DEEP INTERNAL CHANNELING

FIT SYSTEM
- ROC LOC 5+ AIR

PRODUCT WEIGHT
- 275G

SIZE GUIDE

ADULT SUPER FIT SIZE - HEAD CIRCUMFERENCE

SMALL: 51-55 cm
MEDIUM: 55-59 cm
LARGE: 59-63 cm

Note: We recommend you try helmets on before buying. 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.

HOW TO ADJUST THE FIT

Step 1: If the helmet has one, adjust the fit system at the rear of the helmet for a snug, secure fit. Some fit systems also include a vertical tuning feature that allows you to adjust the fore/aft tilt, for optimal positioning on your
head.

Step 2: Adjust the straps so that they sit just below the earlobes.

Step 3: Adjust the buckle so that it rests against the back of the jaw/throat.

Step 4: Adjust the interior pads if needed.

Step 5: Check the fit to make sure helmet is comfortable and secure. It should not roll forward or back, or be able to slide off.