Protective Helmet Casco SP-4.1 Midnight Amber, size M (56–58 cm)

The Casco SP-4.1 Midnight Amber protective helmet in size M (56–58 cm) is designed to provide reliable head protection for cycling and a range of outdoor activities. The helmet uses the SP-4.1 shell shape and a Midnight Amber finish, offering a balance of coverage, ventilation and a low-profile look suitable for everyday urban riding and recreational sports. The helmet includes an adjustable fit system to secure the shell comfortably on heads within the 56–58 cm range and accepts standard helmet accessories for added visibility or comfort options.

Advantages

The SP-4.1 shell shape delivers consistent impact protection across the crown and sides while maintaining a compact silhouette. Integrated ventilation channels help manage airflow to reduce heat buildup during activity. The adjustable retention system enables a snug, customizable fit for improved stability and comfort. The Midnight Amber surface provides a subdued but distinct color option that pairs with reflective accessories for better visibility in low light. Materials and construction follow typical protective helmet standards to ensure dependable everyday use.

Suitable for

• Urban cycling and commuting
• Leisure and recreational bike rides
• Electric bike riding in city or suburban areas
• Multi-activity outdoor use where head protection is required

Key specifications

• Head circumference range: 56–58 cm (size M)
• Shell shape: SP-4.1 low-profile design
• Finish/color: Midnight Amber
• Fit system: Adjustable retention mechanism for fine-tuning fit
• Ventilation: Multiple airflow channels integrated into the shell
• Compatibility: Accepts standard helmet accessories (lights, visors, liners)
• Use case: Designed for urban and recreational cycling

How to use

Place the helmet on the head so that it sits level and covers the forehead without tilting backward. Adjust the retention system until the helmet feels secure but comfortable; it should not move significantly when you shake your head. Fasten and adjust the chin strap so it forms a V-shape under each ear and the buckle sits comfortably under the chin with enough room to insert one or two fingers between strap and jaw. If using accessory lights or liners, follow the accessory manufacturer’s fitting instructions and ensure attachments do not compromise the shell or fit.

Usage recommendations

Regularly inspect the helmet for signs of damage, cracks or compressed foam and replace it after any significant impact. Clean the helmet with mild soap and water and avoid solvents or high-temperature drying. Store the helmet away from direct sunlight and extreme heat to preserve materials and fit. Follow local safety regulations and replace the helmet according to manufacturer guidance or after noticeable wear.