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Smith Knowledge OTG ZW9/ZF


Smith Knowledge OTG ZW9/ZF

  • Delivery: FREE

  • Estimated delivery: Temporarily out of stock

  • Return: 30 days

Out of stock 81 GBP 66 GBP

Price as configured: 0.00 GBP


  • Brand Smith
  • Frame color Black
  • Frame shape Single Lens
  • Lens Color Blue
  • Frame type Full-Rim
  • Material Plastic
  • Collection Women, Men
  • Manufacturer Frame Color Black
  • Polarized No
  • Manufacturer Lens Color Blue Sensor Mirror Photochromic
  • Model Knowledge OTG ZW9/ZF
  • Manufacturer Material Injection Molded Plastic


Smith Optics was born in 1965 when Dr. Robert Smith, a dentist by day and an enthusiastic skier, used dental foam and glue to create the first-ever snow goggles featuring breathable vents. This invention revolutionized winter sports and established Smith Optics as a brand that stands for innovative, durable, top-quality products up to this day.

Snow goggles Knowledge OTG ZW9/ZF represent the culmination of Smith's decades long expertise in building, testing and refining snow goggles in cooperation with professional athletes. Streamlined frame geometry provides unrivaled field of view and makes Smith perfectly compatible with helmets from all major manufacturers including Bolle, Giro, Anon, K2 or Smith. Integrated exhaust fans assure superior anti-fog ventilation even in the most demanding conditions.

Smith's Blue Sensor Mirror lens delivers greater definition, more natural color, and unmatched clarity to allow you to see more detail. Blue Sensor Mirror lens has 60% VLT that allows 60% of the sunlight through the lens. For more information about lens VLT click here.

Buy your Smith Knowledge OTG ZW9/ZF Photochromic on eyerim right now and it will be delivered free of charge directly to your door in its original protective packaging including all accessories.


Photochromic technology brings you lenses that adapt to changing light conditions, so you always have the perfect tint for the amount of light.

Cylindrical lens

Cylindrical lenses are built on a base curve only in the X (horizontal) axis. They provide class one optical standards and optimum fit characteristics.

Carbonic X-lens

Smith’s carbonic-x outer lens material is individually molded to offer optimum scratch and impact resistance, increased visual acuity and enhanced contrast sensitivity. The carbonic-x material meets class one optical standards.

Tapered Lens Technology

Smith’s TLT straightens out the incoming light rays by progressively tapering the lens from the optical center toward the peripheral view. What this means for you is that you see with 100% accuracy and maximum comfort.


Majority of ski goggles are manufactured in standard size (M) and tend to have a universal fit for both adults and teenagers. This size fits majority of people and it's very likely it's going to be the correct size for you as well.

Large size (L) goggles have wider, taller and deeper frame size that fits larger faces.

Small size (S) goggles, on the other hand, have narrower, shorter, and shallower frame size. They fit kids and youth, as well as adults with smaller faces.