Z3 goggles are premium goggles for the skier or boarder who wants style, comfort, and above all, performance. The Optimum Lenses have an Anti-Fog Infused Lens Process with High Density Lens Technology, and 100% UV Protection. The frame has Impact Resistant Technology. Of course they are helmet compatible with dual strap adjustments for the perfect fit. One of the most popular models is the Z3 because it has the Recon MOD GPS system. This in-goggle view-finder displays your on-mountain statistics in real time.