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Smith OpticsMens

Smith Optics Knowledge Turbo Fan w/ ChromaPop
Smith Optics Knowledge Turbo Fan w/ ChromaPop
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Additional Details
Lens Material 5X anti-fog inner lens
Lens Technology Cylindrical carbonic-x lens
Special Features 2-layer DriWix face foam, ODS3 & eyeglass compatible, Patented Porex filter, TLT lens technology for crystal clear vision, Two-speed micro-electronic turbo exhaust fan
Fit Large
Country United States
Helmet Compatible Yes
SKU Knowledge-0ZW9-CI


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 5X anti-fog inner lens, the Knowledge provides incredible anti-fog performance for eyeglass wearers. TR-90 frame material ensures quality and durability on the slopes. Hand built in the USA.

Smith Optics

Based in Sun Valley, Idaho, Smith Optics, Inc. was founded in 1965 with the creation of the first-ever goggle featuring a sealed thermal lens and breathable vent foam. Today, Smith Optics has become synonymous with innovative, durable, top-quality products in the eyewear, goggle, and helmet market.


Eyedictive guarantees every frame to be brand new and 100% authentic. Returns are welcome within 30 days of order delivery. See here for additional details.

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