Children's motocross helmet ALPINESTARS SM3 JETTSON GRAY/PUR/BLK

Children's motocross helmet ALPINESTARS SM3 JETTSON GRAY/PUR/BLK

• Shell construction featuring a thermo-injected shell incorporating a special polymer blend reinforced with varying degrees of thickness, designed to provide an optimal combination of impact protection and low weight.
• The S-M3 helmet is designed for use in the MX, enduro and off-road classes and includes innovations and technologies optimized for ease of use, comfort and impact performance.
• Alpinestars' patented innovative low-friction coating is applied to the inside of the main EPS liner to reduce rotational acceleration forces that can occur in some oblique impacts.
• The patented visor release system ensures the visor is released with the correct predetermined force, effectively reducing the forces on the neck during an impact.

• Advanced Shell Construction: This helmet features a thermo-injected shell containing a special polymer blend reinforced with varying thicknesses, which is designed to provide an optimal combination of impact protection and lightness. The SM3 medium weighs 1430g (ECE) and 1460g (DOT).
• Ventilation: Maximum ventilation and high levels of heat exchange thanks to 10 inlet and 7 outlet openings.
• Rotational Acceleration Force Protection: Alpinestars' patented low-friction coating is applied to the inside of the main EPS liner to reduce rotational acceleration forces that can occur during certain angled impacts.
• This layer acts as a sliding surface that mimics the brain's low-triacyl cerebrospinal fluid, which is the body's natural defense against oblique impacts.
• The patented visor release system ensures that it releases with a predetermined force, effectively reducing the forces acting on the rider's neck in the event of an impact.