Helmet Alpinestars S-M3 Kids Raidum Yellow

The children's helmet Alpinestars S-M3 Radium offers safety and comfort for young riders.

Specifications:

• Lightweight thermoinjected shell: features a special blend of polymers with variable thicknesses, designed to provide the optimal combination of impact protection and lightness, helping to reduce fatigue for young riders.
• Advanced thermoplastic construction: the lightweight outer shell is made from technologically advanced and impact-resistant thermoplastic, available in three sizes (Youth Small, Youth Medium, and Youth Large); the SM3 Youth weighs 2.34 lb (ECE) and 2.58 lb (DOT), enhancing comfort during long-term use.
• Specific DOT and ECE versions: shells are developed separately according to DOT and ECE requirements; in the DOT certified version, the inner shell incorporates a composite fiber assembled between the outer shell and the EPS liner to maximize impact protection.
• Customizable fit: the fit can be adjusted to the rider's head thanks to the crown pad and cheek pads, available as replacement parts in different thicknesses for a more precise and comfortable hold.
• YM/YL growth system: the Youth Medium (YM) and Youth Large (YL) sizes share the same size EPS, allowing you to start with a YM helmet and later convert it to Youth Large as the rider grows by replacing the crown pad and cheek pads.
• Specific YS fit: the Youth Small (YS) size uses a smaller EPS and can only be customized with the Cheek Pads; extensive research by Alpinestars has shown that YS users are usually very young children, typically 3 to 4 years old, and therefore require a specific helmet fit.
• NEW ALPINESTARS SAFETY STANDARD: Alpinestars has introduced a new internal standard for the SM3 Youth to subject the helmet chin bar to more demanding conditions than those of the homologation standard; to meet the new Alpinestars standards, both the shell thickness and the chin bar design structure have been optimized to provide superior impact performance.
• Equipped with an Emergency Release System and removable cheek pads, allowing the cheek pads to be removed safely and easily while the helmet is still on.
• Stainless steel D-rings ensure a secure and firm fit.
• The SM3 helmet is DOT certified and ECE 22.06 approved for worldwide use.
• This lightweight helmet features a thermoinjected shell incorporating a special blend of polymers enhanced with varying thicknesses, designed to offer the optimal combination of impact protection and lightness.
• The lightweight outer shell is made with a technologically advanced impact-resistant thermoplastic in three sizes (Youth Small, Youth Medium, and Youth Large). The SM3 Youth weighs 2.34 lb (ECE) and 2.58 lb (DOT).
• Separate shell versions for DOT and ECE requirements; the DOT-certified version of the helmet's inner shell is constructed with a composite fiber assembled between the outer shell and the EPS liner for maximum impact protection.
• The fit can be adapted to the rider's head thanks to the Crown Pad and helmet Cheek Pads, available as replacement parts in different thicknesses.
• Youth Medium (YM) and Youth Large (YL) share the same EPS size, allowing riders with a YM size to initially buy a YM helmet and later configure it to Youth Large as they grow using replacement crown pads and cheek pads.
• Youth Small (YS) has a smaller EPS size and can only be customized with the cheek pads. Extensive research by Alpinestars has shown that children who wear a size YS are very young, typically 3 to 4 years old, and therefore require a dedicated helmet fit.