Protective mountain bike helmet GIRO SOURCE MIPS size M (55–59 cm), color Matte Dark Shark Dune

GIRO SOURCE MIPS is a protective mountain bike helmet sized M (55–59 cm) in Matte Dark Shark Dune finish, designed for trail and off-road riding. The helmet combines MIPS rotational impact protection with a multi-vent design and an adjustable retention system to provide a balance of safety, fit and ventilation for recreational and performance mountain biking. It is intended for daily training, enduro and cross-country use where sustained comfort and dependable head protection are required.

Advantages

The helmet integrates MIPS technology to reduce rotational forces transmitted to the head in certain impacts, while the adjustable fit system allows precise sizing within the 55–59 cm range. Multiple ventilation channels promote airflow to help regulate temperature during long climbs and intense efforts. The matte Dark Shark Dune color offers a subdued, low-glare finish suitable for varied trail conditions. Construction focuses on impact absorption, stable fit and user-adjustable comfort without unnecessary complexity.

Suitable for

• Trail and enduro mountain biking
• Cross-country training and races
• Daily recreational off-road rides
• Commute or bikepacking on mixed terrain

Key specifications

• Size: Medium, fits head circumference approximately 55–59 cm
• Safety: MIPS rotational protection system integrated
• Ventilation: Multiple vents and internal channels for airflow
• Fit system: Adjustable retention dial for secure, customizable fit
• Exterior finish: Matte Dark Shark Dune color

How to use

Place the helmet on the head so it sits level and covers the forehead without tilting back. Adjust the retention dial until the helmet feels snug but comfortable, and fasten the chin strap, ensuring the side straps form a V just below the ears. Tighten the chin strap so it is secure but allows one to breathe and speak comfortably. Regularly inspect the helmet for signs of damage or wear and replace it after significant impact or when straps, shell or retention components are compromised.

Usage recommendations

For optimal protection and comfort, measure head circumference to confirm the 55–59 cm fit before purchase, periodically clean the helmet with mild soap and water, and store it away from prolonged sunlight and extreme heat. Replace the helmet after any significant crash or when visible damage is present. Use with compatible eyewear and gloves for improved trail control and protection.