From Bollé's High Performance Range comes the ladies Simmer ski goggles (ideal for making stew). The Simmer features triple layer face foam for an optimum comfort fit and a Spherical Vented P80 Plus polycarbonate Equalizer lens. P80 Plus is Bollé's own proprietary lens coating that provides maximum protection against lens fogging and most scratching. The venting is provided via Bollé's Flow-Tech System, venting ports which control air flow over the inside of the lens and so prevent fogging and snow and ice clogging. The Equalizer technology consists of a waterproof, breathable vent used to eliminate any moisture. The result is distortion free vision and no fogging at any altitude. Perfect helmet fit.