Friendly Notices: 1. Please remove the protective film of inner lens before use. 2. Do not wipe them with hands or rough cloth as they will either stain or scratch the lens. If snow gets into your goggles, shake them out first, then dab them with a goggle cloth. 3. Please do not put the lens facing down on the table or on the ground. 4. After skiing, we recommend you to put the goggles in an airy place to dispel sweat smell. If the foam is soaked with sweat, we suggest you using a hairdryer.