Here's what other sites are saying:
Spy's Zed goggles might have a reputation for withstanding harsh punishment, but that reputation obviously didn't take you into account, because your lens looks like it was beaten with a pipe and finished off with a blow torch. Not to worry, the Zed Goggle Replacement Lens gives you multiple color options with which to replace that beat-up lens. All the styles have the same anti-scratch surface that helps it survive tree-whips and ice-scrapes. And Spy's super secret formula prevents any fog-ups when you work your ass off at the park. Some of the styles have a Spectra coating that's effective in full sunshine, and it conceals your wandering eyes with a shiny mirror.