The POC Ciasma Goggles use a magnetic lens change system, so swapping lenses on the mountain takes seconds instead of a fight with the frame. Each lens locks into its own color-matched bumper, and two full sets come included, ready to swap the moment light or weather shifts. An extra-large field of view extends down the cheek for uninterrupted peripheral vision on the way down. What Our Gearhead(R) Experts Are Saying:"I swapped lenses at the top of a run when clouds rolled in, and the new one locked into place in seconds with gloves still on. That's one less reason to stop moving when conditions change fast."