{"product_id":"alpinestars-sm3-radium-helmet","title":"Alpinestars SM3 Radium Helmet","description":"\u003c!-- more --\u003e\n\u003cp\u003eThe Alpinestars SM3 Radium is a value-packed off-road helmet built for motocross, enduro and trail riding. It carries both DOT certification and ECE 22.06 homologation, so it's approved for use worldwide, and it pairs Alpinestars' protection technology with a lightweight polymer shell.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermo-injected polymer shell:\u003c\/strong\u003e a special polymer blend with varying thickness for a balance of impact protection and low weight.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRotational impact protection:\u003c\/strong\u003e a patented low-friction coating on the EPS liner and a specially developed comfort liner reduce the rotational forces from angled impacts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-density EPS\/EPP liner:\u003c\/strong\u003e six inner parts in five densities, with a liner sized for each helmet size.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePatented visor release:\u003c\/strong\u003e the visor releases at a set force to reduce the load on your neck in a crash.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum airflow:\u003c\/strong\u003e 10 intake vents and 7 exhaust ports.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTougher chin protection:\u003c\/strong\u003e the chin area is tested to an Alpinestars in-house standard that is more demanding than the homologation standard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eComfort \u0026amp; Fit\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eEmergency-release removable cheek pads, with 3D contoured foam.\u003c\/li\u003e\n  \u003cli\u003eHydration tube loops built into the cheek pads.\u003c\/li\u003e\n  \u003cli\u003eComfort liner made with recycled materials.\u003c\/li\u003e\n  \u003cli\u003eCrown and cheek pads are available as genuine spare parts in different thicknesses to tailor the fit.\u003c\/li\u003e\n  \u003cli\u003eSoft 25 mm textile chin strap with stainless steel D-rings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Alpinestars\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Off-road \/ MX \/ enduro helmet with peak visor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e DOT and ECE 22.06\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight (size M):\u003c\/strong\u003e 1,310 g (ECE) \/ 1,430 g (DOT)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e 10 inlets, 7 exhausts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAlways check the fit before you ride. 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