The Optica 1 is a trendy ski goggle with an interchangeable extra orange category 2 lens, ensuring optimal vision under any weather conditions. The other lens is a category 3 Gold Revo Quantum lens, which filters an additional 15% of light for even better vision. The lenses can easily be interchanged using the 8 magnets which are attached to the frame. Click & Go, this Brunotti Goggle has a spherical frame, with added ventilation to prevent the lens from fogging up. The inside of the frame is lined with three layers of foam for added comfort and to wick away moisture. This ski goggle comes with a hard storage case to provide maximum protection for your goggles.