Winter helmet GIRO RATIO MIPS matte indigo, size M (55.5–59 cm)

The GIRO RATIO MIPS matte indigo in size M (55.5–59 cm) is a winter protective helmet designed for cold-weather riding, skiing and snowboarding. It combines a hard outer shell with an inner impact-absorbing liner and an integrated MIPS rotational protection system to reduce rotational forces in certain impacts. The helmet includes an adjustable fit system and ventilation channels that balance warmth and airflow for active winter use.

Advantages

This helmet offers rotational impact protection through the MIPS system and a secure, customizable fit via its adjustable retention system. The matte indigo finish provides a subdued, weather-resistant exterior while the internal liner and ear coverage help retain warmth. Integrated ventilation and a design intended for winter activity ensure the helmet remains comfortable during extended use in cold conditions.

Suitable for

• Recreational alpine skiing and snowboarding
• Urban winter cycling and commuter riding in cold weather
• Winter sports where a balance of protection and warmth is needed

When it may not be suitable

The GIRO RATIO MIPS is designed specifically for winter activities and cold-weather cycling; it may not be the best choice for high-speed downhill ski racing or activities that require specialized competition helmets certified to different standards. Also, riders who prefer maximum ventilation for warm-weather use should select a summer-specific helmet.

Key specifications

• Size: M, fits head circumference approximately 55.5–59 cm
• Protection: rotational impact protection system integrated
• Construction: hard outer shell with impact-absorbing inner liner
• Fit system: adjustable retention for a secure, custom fit
• Ventilation: integrated channels to manage airflow and warmth
• Finish: matte indigo exterior

How to use

Measure head circumference to confirm the M size fits within the 55.5–59 cm range. Adjust the retention system so the helmet sits level on the head with the front edge approximately one to two finger-widths above the eyebrows. Fasten and adjust chin straps so they are snug but comfortable, allowing full range of motion. Use the ventilation adjustments, if present, to balance warmth and airflow during activity. After use in wet or snowy conditions, allow the helmet to dry naturally and store it in a cool, dry place away from direct heat and sunlight.

What to consider before purchase

• Confirm head measurement matches the stated size range (55.5–59 cm)
• Consider intended use—winter sports and cold-weather cycling
• Check compatibility with goggles, ear pads or communication accessories if required
• Evaluate ventilation needs based on activity intensity and typical temperatures

Usage recommendations

Inspect the helmet before each use for signs of damage and replace it after a significant impact. For optimal protection and comfort, pair the helmet with compatible winter liners or ear pads and adjust ventilation to suit conditions.