Style:Mirrored Lens All 100% MX goggles share the same lens and tear-off profile. Constructed of durable, yet flexible urethane. Equipped with anti-fog, scratch-resistant Lexan lens for unimpaired vision. Oversized 45mm silicone-coated strap holds your goggles motionless. Mirror/smoke lens models include an extra clear lens and 20 standard tear-offs in the box. Clear lens models include 20 standard tear-offs in the box.