The 100 Percent Strata Mud Youth Goggles feature the intergrated Speedlab Vision System (SVS) to prevent treacherous weather conditions from slowing you down. Let us do the goggle building for you. The Mud Strata comes prefabricated with our Speedlab Vision System installed straight out of the box. Now you can immediately attack a muddy moto with the confidence of having clear vision.. 100 Percent Strata Mud Youth Goggles Features Simplicity: Pre-built with Speedlab Vision System to tackle the muddiest conditions. Fitment: Curvature suited for comfort and specifically developed for youth. Foam: Increased vent foam density aiding in keeping the elements out. Frame: Constructed out of flexible yet durable urethane featuring combined matte & gloss finish. Lens: Anti-fog, scratch resistant Lexan lens for unimpaired vision. Strap: 40mm silicon coated strap holds your goggles in place in wet conditions. 100 Percent Strata Mud Youth Goggles Specifications Filter Category: 0 (Clear). Light Transmission: 88%-92% (Clear).