Maximum fog-free venting meets maximum field of view. Be unstoppable in the 509 Sinister X6 Fuzion Flow Goggle 509’s most popular snowmobile goggle ever.You want more venting 509’s got it. The 509 Sinister X6 Fuzion Flow Goggle maximizes airflow to maintain total fog-free clarity for the most aggressive riders. Venting in both the lens and the frame optimizes airflow to eliminate fogging, while industry-first Fuzion lens technology fuses Super Anti-Fog inner and outer lenses into one optically clear view. Available HCS (High Contrast Spectrum) lens tints (sold separately) let you fine-tune your vision to fit any lighting condition.

FLOW venting in lens, and in frame
Fuzion Lens Technology
HCS (High Contrast Spectrum) technology lens options
45mm strap with silicone to hold strap in place
Removable nose piece