As low as $54.99/mo with or . (Pay in 4 interest-free payments)
ALPINESTARS Youth SM3 Solid Helmet (Matte Black) Built for off-road confidence , the ALPINESTARS Youth SM3 is a vented MX-style helmet designed to deliver a smart mix of impact protection , lightweight comfort , and breathable airflow for young riders. Engineered with a thermo-injected shell using a special polymer blend with varying thickness for optimized protection, the SM3 features a technologically advanced impact-resistant thermoplastic outer shell. The multiple-density inner liner is placed to absorb impacts efficiently while helping keep overall weight down. Protection & Impact Management Multiple density inner liner for targeted impact absorption Surfaces engineered to minimize effects of oblique impacts Low-friction coating on the EPS liner acts as a slip plane to help reduce rotational acceleration forces Emergency Release System and removable cheek pads for safe, easy removal Ventilation & Comfort 10 inlets and 7 exhaust ports for maximized ventilation and heat transfer Visor designed to direct air to the ports for improved airflow Hydration tube channels integrated into cheek pads Comfort liner made with recycled materials for a lower carbon footprint 3D contoured foam and 25 mm soft textile chin strap Fit & Security Fit can be tailored with crown and cheek pads (spare parts in different thicknesses) Visor release system designed to reduce forces on the rider’s neck during impact Stainless steel D-rings for secure closure Color/Finish: Matte Black, Solid Graphic Type: MX / Off-Road (ATV, UTV) Size: M (Youth) Gender: Unisex Shell Material: Composite Fiberglass Weight: 4.15 lbs Dimensions: 14.25" x 10" x 11.5"
Features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight
Lightweight outer shell constructed from a technologically advanced impact resistant thermoplastic
The fit can be tailored to the rider’s head thanks to the helmet’s crown and cheek pads, which are available as spare parts in different thicknesses
The multiple density inner liner ensures the helmet is equipped with the correct density in the correct area for enhanced impact absorption, while also helping to reduce overall weight
The inner and outer surfaces are engineered to minimize the effects of oblique impacts
Low friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result from certain oblique impacts— this layer essentially acts as a slip plane to mimic the brain’s own low friction cerebrospinal fluid, which is the body’s natural defense against oblique impacts
Maximized ventilation and high levels of heat transfer exchange thanks to ten inlets and seven exhaust ports
The visor has been designed to direct air into the ports for enhanced airflow
Visor release system ensures the visor is released with the correct pre-determined amount of force, effectively reducing the forces on the rider’s neck during an impact
Comfort liner is constructed using recycled materials for a lower carbon footprint
Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance
Soft textile chin strap is 25 mm for optimal safety and rider comfort
Equipped with an Emergency Release System and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort
Stainless steel D-rings ensure a tight and secure fit
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