A fogged-up visor is more than annoying. When you can't see the road, it's dangerous. The good news is that it's easy to fix once you know what's causing it.
Why visors fog up
Your breath is warm and full of moisture. When it hits the inside of a visor that's been cooled by the outside air, the moisture condenses into tiny droplets. That's fog. It's worst on cold mornings, in the rain, and whenever you slow down or stop, because less air is flowing through the helmet.
Quick fixes (that only help a little)
- Crack the visor open at low speed. It works, but lets in cold air, rain, and bugs.
- Open your helmet's vents, especially the chin vent, to move air across the visor.
- Use a breath guard if your helmet has one, to direct your breath down and away from the visor.
- Anti-fog sprays and wipes help for a short time but wear off and need reapplying.
The real fix: an anti-fog film insert
An anti-fog film is a thin second lens that mounts on the inside of your visor. It creates a sealed pocket of air between the film and the visor, and that pocket acts as insulation. The inner surface stays warm, so your breath doesn't condense on it. It's the same idea as double-glazed windows.
It's the most reliable way to stay fog-free, and it lasts far longer than sprays.
How to make sure it fits
Anti-fog films mount on two small pins on the inside of the visor. That means:
- The film has to be made for your exact visor shape.
- Your visor needs to have the mounting pins. Many of our KillSwitch® visors come with pins for our anti-fog film. Check the product page under "What's Included".
Shop anti-fog film by helmet
SHOEI · Arai · AGV · HJC · KYT · Alpinestars · Scorpion · Shark · LS2 · all anti-fog film
Riding into the night too? Pair your film with a photochromic visor and you'll have one setup that handles fog, sun, and darkness.