Alpinestars Youth SM3 Helmet Radium Gloss Yellow Fluo - Large 8301825-5017-YL

Youth SM3 Helmet - Radium - Gloss Yellow Fluo/Black/Blue - Large

The Alpinestars Youth SM3 Helmet Radium features a thermo-injected shell made with a specialized polymer blend that varies in thickness to optimize impact protection while maintaining lightweight comfort. Its durable outer shell is constructed from advanced impact-resistant thermoplastic, providing reliable defense against impacts during high-intensity activities. The helmet's fit can be customized with optional crown and cheek pads available in different thicknesses, ensuring a secure and comfortable fit for young riders. The multiple density inner liner is designed to absorb impacts effectively while reducing overall helmet weight, enhancing rider comfort without compromising safety.
The helmet's surfaces are engineered to minimize the effects of oblique impacts, with a low friction coating on the EPS liner that acts as a slip plane to reduce rotational forces—mimicking the brain’s cerebrospinal fluid and offering additional protection during angled collisions. Ventilation is maximized through ten air inlets and seven exhaust ports, creating a high level of airflow and heat transfer. The visor directs airflow efficiently into these ports, further improving cooling. A visor release system ensures the visor detaches with a predetermined force, reducing neck strain during impact events. Comfort is enhanced with a liner made from recycled materials, lowering the helmet’s carbon footprint.
Integrated hydration tube channels within the cheek pads provide convenient hydration access during activity, and the soft 25 mm textile chin strap offers both security and comfort. Safety features include an Emergency Release System and removable cheek pads, allowing for safe and easy helmet removal if necessary. The 3D contoured foam interior ensures a snug, comfortable fit, while stainless steel D-rings guarantee a secure closure. Overall, the Alpinestars Youth SM3 Helmet Radium is a high-performance helmet designed to deliver optimal safety, comfort, and ventilation for young riders engaged in demanding sports or activities.

Features:

• Thermo-injected shell with specialized polymer blend for impact protection and lightweight design

• Advanced impact-resistant thermoplastic outer shell

• Customizable fit with optional crown and cheek pads in different thicknesses

• Multiple density inner liner for targeted impact absorption and weight reduction

• Engineered surfaces to minimize oblique impact effects

• Low friction coating on EPS liner to reduce rotational forces, acting as a slip plane

• Maximized ventilation with ten inlets and seven exhaust ports for high airflow

• Visor designed to direct air into ventilation ports for improved cooling

• Visor release system reduces neck strain by releasing with controlled force

• Helmet liner made from recycled materials for sustainability

• Integrated hydration tube channels in cheek pads for convenience

• Soft textile chin strap (25 mm) for safety and comfort

• Emergency Release System and removable cheek pads for safe helmet removal

• 3D contoured foam interior for a comfortable fit

• Stainless steel D-rings for a secure closure