The X2s Goggles are a slightly smaller version of Dragon's top-of-the-line ski goggles for people with smaller faces or who want less face coverage. It still boasts Dragon's best features available, like the Patented Frameless Technology, expanded peripherals, and spherical lens that enhance your field of vision despite the goggle's smaller size. The lens features an anti-fog treatment to keep moisture off the lens, and you can replace it via Dragon's Switchlock interchange design with the included bonus lens. Armored Venting, triple-layer foam, and microfleece assure a comfy day at the ski resort, as far as your face is concerned.Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.