When you're at the top of a run, the VonZipper Jetpack Goggle allows you to see what you're getting yourself into. Jet into the run with confidence as the anti-fog lens and moisture wicking face foam keep moisture from soiling your vision. The polycarbonate lens will block harmful rays to keep your eyes happy when the sun beats down. When the light conditions change as the day goes on, easily switch out the lenses utilizing VonZipper's 4Play quick-exchange lens system to stay ahead of the game. Fit them over your glasses, adjust them over your helmet, and charge a new line.