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The Knowledge provides exceptional fog prevention, comfort and fit for eyeglass users!  Floating Foam membrane helps to eliminate temple pressure combined with the Articulating Strap Positioning System provides the eyeglass user with all day comfort.

REGULATOR VENTILATION
Patented Regulator adjustable lens ventilation system in the Spherical and Regulator Series provides added control of airflow through the goggle. Use the open position while stopped in line or on the lift to increase the circulation of dry, fresh air. Close it before descending to prevent tearing.

Manufacturer: Smith Optics
Frame Color: Choose Below
Lens Color: Choose Below
Lens Material: Carbonic-X
UV Protection: 100%
Helmet Compatible: Yes
Features: Over the Glasses, Ultra-Wide Quickfit Silicone Backed Strap with Clip Buckle, Dual Layer Driwix Face Foam
Includes: Microfiber Bag
Fits Faces: L
Warranty: Lifetime Manufacturers