Magic Mirror Anti-Fog Shield
Magic Mirror Anti-Fog Shield - Mounteen Reviews
Got the oval set for my CR-V. Was a bit hesitant if these would work, but it's rain season here in Florida so I figured I'd give it a shot. You peel off the rear layer and stick it on the mirror. Apply some pressure to remove air bubbles and then remove the front layer. The result may not be as water-free as on the picture, but nevertheless it works and provides I would say an 80-90% protection against water and fogging.