All Save Phace and Fish Hedz masks WILL NOT fog up! It literally takes less than 3 seconds to put it on and take it off AND they fit easily over sunglasses or prescription glasses. Our masks were designed to fit 98% of the world's population. If you fit into the 98% range, you are about to experience a whole new boat ride! These cool looking face masks are lightweight (less than a 1 lb dink), comfortable, can be easily stowed in your glove box, tackle bin, under the seat or hang it over the throttle so it doesn't get into your way .