Airlock I Interchangeable, Black Frame, 3 Sets of Lenses
Block out the breeze with the Airlock I & II made of gloss black TR90 frames, which are lighter, more flexible and significantly more durable than conventional plastics. Lenses are crafted from shatter-resistant polycarbonate, while he streamlined, wrap around construction is extremely comfortable, & the detachable side shields reduce air draft by as much as 95%. The interchangeable lenses allow tailoring lens color to ambient light conditions.