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Alpinestars SM3 Radium Helmet ECE06/DOT XL, Black/Red Fluo/White Glossy

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Product description

  • Thermo-injected polymer shell with variable thickness delivers exceptional impact protection while keeping the helmet lightweight at just 1430 g (ECE) and 1460 g (DOT).
  • Ten intake vents and seven exhaust ports maximize airflow for superior heat transfer and all-day riding comfort.
  • Patented low-friction liner coating reduces rotational forces on oblique impacts by mimicking the brain’s natural cerebrospinal fluid slip plane.
  • Innovative visor release system deploys under predetermined force to reduce neck loads during an impact.
  • Removable cheek pads, integrated hydration tube channels, and recycled comfort liner offer a customizable fit and eco-conscious performance in a DOT- and ECE 22.06-certified design. Meets Federal Motor Vehicle Safety Standard 218 (FMVSS 218).

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