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Smith Knowledge OTG turbo goggles are designed to fit over your eyeglasses - hence  the OTG meaning "over the glasses").  Available in two colors, Smith Knowledge OTG goggles are fantastic for skiing.  The turbo version of the Knowledge OTG goggles includes a fan to keep a constant air cirulation in the goggles.  This prevents them from fogging up when you are standing in the lift line, or sitting in the chair.

The best fog prevention system available for eyeglass users.


  • + Articulating strap positioning system
  • + Carbonic-X lens with TLT Optics
  • + Dual Layer Driwix Face Foam
  • + Floating foam membrane eliminates eyeglass temple pressure
  • + Helmet Compatible
  • + Large fit
  • + Microfiber bag included
  • + O.D.S. and eyeglass compatible
  • + Patented Vaporator Lens Technology with Porex™ Filter
  • + QuickFit strap adjustment system
  • + Two-speed, micro-electronic fan
  • + Ultra-Wide Silicone Backed Strap

  • These designer sunglasses cannot take prescription lenses.
  • Smith Knowledge OTG Turbo frames have a oval shape, which helps to balance rectangular facial features. Frame shape is the most noticeable feature of a pair of glasses, followed by frame color and frame size. Top brands always have a large collection of rectangle frame shape glasses, as well as oval frame shape glasses.
  • Smith Knowledge OTG Turbo frames feature a fashionable full frame design, which is the largest component of designer eyeglasses brands collections. A rim all the way around the lenses, provides for maximum stability and durability.
  • Designed for adults, this model has a Hingeless type hinge for greater comfort.
  • Unconditional lifetime warranty. The warrantee by the manufacturer covers manufacturer's defects for the frame. As an online optical superstore, we can help to process a warrantee for you with the manufacturer, according to their return policy.
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  • Smith Sunglasses

    Based in Sun Valley, Idaho Smith Sunglasses were first created in 1965 with the creation of the first goggle featuring a sealed thermal lens and breathable vent foam. Today Smith is known for a wide array of sunglasses, goggles, helmets, and prescription eyewear. Smith glasses and Smith sunglasses can all be customized with prescription lenses, just like all of our sunglasses.  Smith sunglasses are a fantastically crafted, high quality, design orientated glasses collection featuring many different eyewear shapes and styles. Ranging from thick, smooth and sleek frames, to classic thin metal frames and everything in between, there is a large variety to choose from. They are available in just about every modern shape - oval, round, rectangular, aviator, cat eye and numerous others.

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Smith Knowledge OTG Turbo

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