Alpinestars - SM3 Helmet - Solid - Matte Black

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Varied thickness shell construction for optimized protection and light weight 6-piece EPS liner with three different densities Polished inner EPS liner with special coating to redu ce friction with comfort liner for rotational impact management One outer shell and two inner EPS liner sizes, with optional +/- 5 mm cheek pads for a tailor made fit Breakaway visor Show more