Alpinestars Sm5 Compass Helmet
The SM5 Compass Helmet from Alpinestars is an MX/off-road helmet built for riders seeking lightweight construction, strong impact protection, ventilation and safety — ideal for motocross, trail, dual-sport use.
Key Features
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Thermo-injected polymer outer shell available in two shell-sizes for structural strength and light weight.
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Multi-density EPS inner liner engineered to provide targeted impact absorption across zones.
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Dual concept impact-energy management: resin-coated inner shell reduces linear acceleration, plus an elastic joint between inner shell and comfort liner allowing independent movement in oblique impacts — reducing rotational forces.
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Emergency Release System (ERS) with removable cheek pads for safe, easy removal by trained personnel after a crash.
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Quick-release, multi-angle visor system that sits flush on the shell (no screws), improving safety and simplifying maintenance/cleaning.
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Excellent ventilation: multi-air inlets + exhaust ports + internal air-channel network for high airflow and heat exchange — useful for hot, long rides or intense MX sessions.
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Integrated hydration-tube compatible channels routed through cheek pads (great for long trail or enduro riding).
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Removable, washable, moisture-wicking and anti-microbial comfort liner and cheek-pads for hygiene and comfort.
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26 mm textile chin strap with stainless-steel D-rings for secure fastening.
Materials / Protection
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Outer shell: advanced thermo-injected polymer shell, engineered for strength and weight optimization.
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Inner shell / liner: multi-density EPS for impact absorption, designed to work with shell/liner dynamics to reduce both linear and rotational impact forces.
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Interior: comfort liner + cheek pads (washable, moisture-wickling, anti-microbial).
Certifications