Road Helmet GIRO Aries Spherical MIPS — Size L (59–63 cm), Matte Black

The GIRO Aries Spherical MIPS in size L (59–63 cm) is a road cycling helmet engineered for riders who need ventilation, fit adjustability and aerodynamic performance. It combines a lightweight shell with integrated Spherical technology and MIPS rotational impact protection to address linear and rotational forces in a compact, road-oriented shape. The matte black finish and low-profile silhouette suit sport and training use while an adjustable retention system helps secure a personalized fit for long rides.

Advantages

This helmet integrates Spherical technology to create controlled suspension between inner and outer layers, improving management of impact energy. The built-in MIPS rotational protection system reduces rotational forces transmitted to the head in oblique impacts. Multiple vents and internal channeling support airflow and passive cooling without compromising stability. A micrometric retention dial and adjustable straps allow fine fit tuning, while the matte finish resists glare and keeps a discreet appearance.

Suitable for

• Road cycling and endurance rides
• Group training and club rides
• All-day sportive and gran fondo events
• Riders requiring adjustable fit for long distances

Key specifications

• Fit range: Large (fits head circumference approx. 59–63 cm)
• Safety systems: Spherical dual-layer impact construction with integrated rotational protection
• Ventilation: Multiple front and rear vents with internal channeling for airflow
• Adjustment: Micrometric retention dial and adjustable chin straps
• Shell: Lightweight, road-oriented aerodynamic outer shell
• Finish: Matte black

How to use

Place the helmet on the head so it sits level and covers the forehead without tilting back. Adjust the micrometric retention dial until the helmet is snug but comfortable; the helmet should not move significantly when you shake your head. Position and tighten the chin strap so it sits under the ears and allows one or two fingers of clearance beneath the fastened buckle. Use the integrated vents for passive cooling—no additional setup is required. Inspect the helmet before each ride for visible damage and replace it after any significant impact.

Usage recommendations

Choose the correct size by measuring head circumference near the brow line. Replace the helmet after a major crash or when structural damage is visible. Clean the shell and straps with mild soap and water, and avoid solvent-based cleaners. For maximum protection ensure the retention system is properly adjusted before each ride.