The Pret Effect Photochromic Goggle is designed to keep your vision sharp and your focus on the mountain, no matter how quickly the weather changes. Its high-altitude LUCENT Photochromic lens automatically adapts from 14% VLT in bright conditions to 68% VLT when the light fades, delivering clear, high-contrast vision from bluebird skies to stormy days. The magnetic SNAPMAG lens system makes swapping lenses quick and secure, while VisionVent anti-fog technology and goggle-to-helmet venting help keep your view clear when things heat up. An impact-resistant NXT® lens provides excellent optical clarity and 100% UV protection, while triple-layer foam follows the curve of your helmet for a comfortable, precise fit. OTG compatibility, dual strap adjustment, and lightweight all-mountain durability round out a goggle built for changing conditions and long days on the slopes.