Winter Helmet GIRO Jackson MIPS, size M (55.5–59 cm), matte stone, NEW 2025/2026

The GIRO Jackson MIPS is a winter helmet engineered for downhill and all-mountain skiing and snowboarding. Sized M (55.5–59 cm) in a matte stone finish, this 2025/2026 model combines an adjustable fit, integrated Multi-Directional Impact Protection System (MIPS) and winter-focused comfort features such as insulated lining and controlled ventilation to balance warmth and breathability on cold-weather outings.

Advantages

The Jackson MIPS delivers multi-directional impact protection designed to reduce rotational forces during oblique impacts while standard shell construction and energy-absorbing liner provide direct impact protection. The helmet includes an adjustable fit system that secures a consistent fit across the specified head circumference range and ear-coverage profile for winter sports. Insulating internal lining and tailored ventilation ports preserve warmth without causing excessive heat buildup, and the matte stone finish offers a low-glare, neutral appearance suitable for a range of outerwear.

Suitable for

• Downhill skiing at resort runs and steep terrain
• All-mountain freeride and mixed-condition skiing
• Snowboarding, including park sessions and freeride lines
• Cold-weather recreational mountain use where warmth and safety are priorities

When it may not be suitable

This helmet is designed specifically for snow sports and cold conditions; it may not be ideal for summer cycling or activities that require dedicated ventilation and lighter construction. Users needing very small or very large sizes should consider other size options, as this listing covers the M (55.5–59 cm) range only.

Key specifications

• Fit range: M (55.5–59 cm) head circumference
• Safety technology: Multi-Directional Impact Protection System (MIPS)
• Shell type: hard outer shell with energy-absorbing liner
• Ventilation: winter-oriented vents with controllable airflow to balance warmth and breathability
• Interior: insulated, removable or fixed winter lining and ear coverage for cold conditions
• Adjustment: rear fit-adjustment system for fine tuning fit
• Finish: matte stone color

How to use

Place the helmet on the head so it sits level and covers the forehead without obstructing vision. Use the rear adjustment dial to fine-tune snugness within the 55.5–59 cm range and fasten the chin strap, adjusting the buckle and sliders so the strap is secure but comfortable beneath the chin. Ensure ear pads or lined covers sit correctly over the ears for warmth. Open or close ventilation ports as needed to manage internal temperature during activity. Inspect the helmet for damage before each use and replace it after any significant impact, as protective performance can be compromised by unseen liner or shell damage.

What to consider before purchase

• Confirm head circumference falls within 55.5–59 cm for proper fit
• Assess whether winter-oriented insulation and ear coverage match your local conditions
• Decide if MIPS rotational protection is a required feature for your riding style
• Consider compatibility with goggles and any audio or communication accessories you plan to use

Usage recommendations

For optimal performance, pair the helmet with properly sized goggles, adjust ventilation to prevent fogging, and store the helmet away from extreme heat or prolonged sunlight. Replace the helmet after significant impacts or after manufacturer recommended service life for continued protective function.