Sunguard Slap-On Sun Visor - 6" x 9"

I use this anytime I am flying in the mornings and afternoons. Great product.

Really not a slap-on if glass is cold. Not enough molecular energy in glass for attraction, have to wet the surface of the film for it to stick as water molecules are polar and attract most anything on contact. Otherwise film works well. I use it mainly at night to reduce glare in my side view mirror. 🤷‍♂️

Bought these for use on sunvisors in the cockpit of a corporate aircraft. They stay on just great and definitely help with the intense sun at higher altitude. Good purchase. They are a little bit fragile and we keep them in a notebook folder until ready to use. Any creases in the polymer will cause them to be difficult to attach well.

The fixed sun visors in cars do a decent job coping with the sun well above the horizon problem. But this simple slap on shade takes care of all of the sun in your eyes problems. Simply adhere it to the windscreen where the sun is relative to you. On winding or convolute roads you’re relative position changes too much for this to be effective. But on those long straight stretches staring in to the setting sun, these stick on sun shades are absolutely the difference between seeing where you are going and blinding glare.

Okay, I know that sounds contradictory, but there aren't a lot of options out there. I also tried a tinted piece of plastic with suction cups, and "extenders" for your normal visor. This doesn't really inspire great feelings in me, but it does do a little bit, a lot less obnoxiously than the competition.

thew auto diming rear view mirror on my Subaru Impreza doesn't get dark enough. i was hoping this would give me the extra protection from bright headlights at night that I'd like to have - but it distorts things too much. I can't see through it properly.

Used a few times and has been helpful when the sun was blinding me. Do need to press on to the window well, doesn't just "slap" on.

I'm using this product to shield the left side of my face from the sun's harmful rays while driving my car. so far it's working fine.