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Smith Knowledge OTG Goggle 2017


The large interior volume of the Knowledge Turbo Fan OTG accommodates a wide range of eyeglass sizes while also fueling the fog-fighting performance of our patented Turbo Fan technology. Combined with our proprietary 5XTM anti- fog inner lens, the Knowledge provides incredible anti-fog performance for eyeglass wearers.


  • Two-speed micro-electronic turbo exhaust fan
  • Cylindrical carbonic-x lens
  • Available with a ChromaPopTM lens
  • 5XTM anti-fog inner lens
  • TLT lens technology for crystal clear vision
  • Patented PorexTM filter prevents optical distortion during changes in elevation


  • Large fit
  • QuickFit strap adjustment system with clip buckle 2-layer
  • DriWix face foam


  • Helmet compatible
  • ODS3 compatible
  • Floating foam membrane eliminates eyeglass temple pressure
  • Ultra-wide, silicone backed strap
  • Articulating strap positioning system

Includes microfiber goggle bag

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