Alpinestars puts a focus on maximizing ventilation with its 2021 Motocross collection. 
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ALPINESTARS LAUNCHES  NEW 2021 MOTOCROSS PROTECTION SM5 HELMET, TECH 10 SUPERVENTED BOOT AND RIDER PROTECTION KIT

ASOLO, ITALY, AND TORRANCE, CA ? The Alpinestars 2021 Motocross Protection Collection has been designed with the utmost attention to materials technology, maximum airflow and ultimate protection and performance. Engineered to protect riders, the new 2021 line expands the range with the addition of two important products: the SM5 helmet and the Tech 10 Supervented boot, bringing leading ventilation technology to both the helmet and the boot. The Tech 10 Supervented is pioneering the way for improving performance and rider comfort by dissipating heat significantly in the boot through increased airflow across the entire bottom of the foot. The all-new SM5 helmet is the result of more than five years of intensive study, development and testing. The Alpinestars? helmet development team scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort.

The result is the SM5, a lightweight helmet that features a HIPRO High Impact Polymer Parametric Shell incorporating a special polymer blend enhanced by varying degrees of thickness and engineered to deliver the optimal combination of impact protection and light weight. The 5 Density EPS liner ensures the correct density in the correct a...