Helmet Nils Extreme MTW001-2, size M (55–58 cm), green

The Nils Extreme MTW001-2 helmet in size M (55–58 cm) is a bicycle and skate helmet with a green outer shell designed for adult riders. It provides a balance of protection, ventilation and an adjustable fit for everyday cycling, commuting and recreational sports. The helmet integrates multiple ventilation openings and a secure retention system to help maintain a stable position on the head while riding.

Advantages

The helmet offers an adjustable fit system that allows fine-tuning to individual head sizes within the 55–58 cm range. Its ventilation design improves airflow to reduce heat build-up during activity. The retention straps and buckle provide a secure and consistent fit, while the lightweight construction aims to limit rider fatigue during longer wear. The green shell gives visible styling suitable for a variety of casual and urban uses.

Suitable for

• Everyday cycling and urban commuting
• Recreational skateboarding and inline skating
• Leisure rides and short-distance cycling trips
• Riders with head circumference within 55–58 cm

When it may not be suitable

This helmet is intended for general bicycle and skate use and may not meet the specific requirements of certain competitive cycling disciplines or specialized helmet standards for downhill mountain biking, motorized sports, or professional skating competitions. It is also not suitable if your head circumference falls outside the 55–58 cm range.

Key specifications

• Size range: 55–58 cm (Medium)
• Intended use: cycling and skating for adults
• Shell color: green
• Ventilation: multiple air vents for improved airflow
• Fit system: adjustable retention for stable positioning
• Strap type: adjustable chin straps with buckle
• Construction: lightweight protective shell

How to use

Place the helmet on the head so it sits level and covers the forehead without tilting back. Adjust the retention system until the helmet feels snug but comfortable, then fasten and adjust the chin strap so it fits closely under the chin allowing one to two fingers of space. Ensure ventilation openings are unobstructed and check the helmet’s stability by shaking the head gently; the helmet should remain firmly in place. Replace the helmet if it sustains any significant impact or shows visible damage.

What to consider before purchase

• Confirm your head circumference falls within 55–58 cm for correct fit.
• Determine whether the helmet’s protection level and design match your intended activity (casual cycling, commuting, skating).
• Consider visibility and color preference—green shell may affect visibility in low light conditions; use additional reflectors or lights if needed.

Usage recommendations

For best protection, always wear the helmet with the retention system properly adjusted and replace it after any substantial impact. Combine the helmet with lights or high-visibility clothing when riding in low-light or busy urban conditions.