The Zeal Optics Tramline Goggle Replacement Lens easily swaps out to replace your old, scratched up lens on your Zeal Tramline Goggle. Ideal for adapting to widely varying alpine conditions, the Tramline Goggle Replacement Lens is offered in a wide variety of tints to accommodate everything from sunny, bluebird days to socked in, stormy conditions. Everclear anti fog coating prevents condensation build up from obscuring your view. Additionally, there's 100% UV protection, as well as a Permashield Hardscratch coating on every replacement lens. Polarized lens options cut harsh glare bouncing off highly reflective snow surfaces, making them a great choice for high altitude skiing and riding. The Molecular Mirrored lenses also help to reduce glare through a wide variety of alpine conditions. Additionally, there's a Photochromatic lens option with the Automatic Plus lens, which adapts from 18 to 33% Visible Light Transmission to accommodate low light, overcast, and sunny conditions alike.