Winter helmet GIRO TRIG MIPS by GIRO, size M (55.5–59 cm), MIPS, matte stone

GIRO TRIG MIPS in matte stone, size M (55.5–59 cm), is a winter protective helmet designed for cyclists and winter-sport participants who need a certified, everyday-use helmet with cold-weather features. The helmet integrates MIPS (Multi-directional Impact Protection System) technology to reduce rotational forces in certain impacts and delivers a stable, adjustable fit appropriate for commuting, recreational rides, and mixed winter activities.

Advantages

The helmet combines impact protection and rotational-force mitigation through its MIPS layer while maintaining a compact, insulated shell suited to lower temperatures. Its matte stone finish offers a neutral, low-reflective appearance that fits a range of helmets styles and clothing. The adjustable retention system and interior padding support a consistent fit across the specified head circumference range, and ventilation is balanced to limit cold-air intrusion while preventing excessive heat buildup during activity.

Suitable for

• Commuting in cold weather
• Recreational winter cycling
• Urban and light trail rides during colder months
• Multi-sport usage where a certified winter helmet is required

When it may not be suitable

This helmet is intended for everyday winter cycling and recreational use rather than specialized high-speed racing or professional downhill events that require sport-specific certification and protection levels. Riders who need extensive ventilation for hot-weather riding or who prefer very lightweight race-oriented helmets may find this model heavier or less ventilated than summer-focused designs.

Key specifications

• Size range: Medium (55.5–59 cm)
• Protective system: MIPS integration for rotational-force mitigation
• Color/finish: Matte stone
• Intended use: Winter cycling and multi-sport recreational activities
• Fit system: Adjustable retention and interior padding for secure fit
• Ventilation: Designed to reduce cold-air intrusion while allowing sweat evaporation

How to use

Position the helmet level on the head so the front rim sits just above the eyebrows. Adjust the retention system to achieve a snug but comfortable hold without excessive movement. Fasten and adjust the chin strap to form a V-shape under each ear and tighten until it is secure; you should be able to fit one or two fingers between the strap and your chin. Check MIPS layer movement by ensuring the helmet sits comfortably; minor relative movement of the inner layer is normal. Regularly inspect the helmet for damage, wear of the straps, and condition of padding, and replace the helmet after any significant impact.

What to consider before purchase

• Measure head circumference to ensure it falls within the 55.5–59 cm range for this medium size.
• Consider whether you need extra ventilation for warmer rides or prefer the winter-oriented insulation of this model.
• Confirm compatibility with any accessory mounts (lights, goggles) you plan to use.
• Verify local safety certification requirements for your intended use.

Usage recommendations

Use the GIRO TRIG MIPS for daily cold-weather cycling and recreational winter activities; combine with reflective clothing and a properly positioned light for low-light conditions. Replace the helmet after an impact or when padding and straps show signs of deterioration to maintain protective performance.