The multiple Lens packages (& unique frame Slot design) make it easy to change lenses for different riding conditions or activities; all wrapped in amazingly ergonomic designs PT-1 - 2 Lens Package PT-1 - 3 Lens Package PT-1 - Clear PT-1 - Light Rust PT-3 - 3 Lens Package PT-3 - 3 Lens Package & Rx Insert WX TALON - 2 Lens Package w/ Rx Insert WX TALON - 3 Lens Package WX TALON - 3 Lens Package w/ Rx Insert XL-1 - LA Light Adjusting XL-1 - Polarized Smoke/Clear 2 Lens Package XL-1 Advanced - 2 Lens Package B-2 - Polarized Smoke G-EYE - 3 Lens Package G-EYE - 2 Lens Package w/ Rx Insert G-EYE - 3 Lens Package w/ RX Insert G-LINE - LA Vermillion G-LINE - LA Violet G-LINE - LA Pale Yellow PT-1 & PT-3 Rx - Insert PT-1 - Smoke PT-1 - Viper Cut PT-3 - 2 Lens Package ROMER II - 3 Lens Package ROMER II - Blue Ice ROMER II - Crimson ROMER II - Polarized Smoke RX - Insert WX TALON - 2 Lens Package XL-1 - Smoke/Clear 2 Lens Package B-2 - 3 Lens Package G-EYE - 2 Lens Package G-LINE - LA Light Rust G-LINE - 2/3 Lens Packages PT-1 - Clear (phase 1) PT-1 - Light Rust (phase 1) PT-1 - Smoke (phase 1) PT-1 - Blue Steel (Phase 1)