509 Altitude 2.0 Helmet
Last winter, our collaborator Olivier wore the 509 Altitude 2.0 helmet during his snowmobile outings.
Olivier Bernier
2021-12-31
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Collaborative text: How do you wear your helmet?
Although Pierre-Olivier and Mathieu both have the same helmet, they both have a different way of wearing it. Here are two possible configurations that meet their respective comfort.
Pierre-Olivier Roy
2021-11-08
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Review: the Altitude 509 helmet !
Last season, Yves tested the 509 Altitude helmet in various winter conditions. Here are his impressions.
Yves Picard
2021-11-03
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