Don't let treacherous weather conditions slow you down. Let us do the goggle building for you. The Strata Mud System comes prefabricated with our Speedlab Vision System professionally installed straight out of the box. Now you can immediately attack a muddy race with the confidence of having clear vision. Features Simplicity: Pre-built with Speedlab Vision System to tackle the muddiest conditions. Fitment: Curvature suited for comfort and great field of vision. Foam: Increased vent foam density aiding in keeping the elements out. Frame: Constructed out of flexible yet durable urethane featuring combined matte & gloss finish. Strap: 40mm silicon coated strap holds your goggles in place in wet conditions. Specification Extras: Mud Flap and 2 rolls of film included. Filter Category: 0 (Clear). Light Transmission: 88%-92% (Clear).