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Quick Fix: Foggy Cycling Glasses

PROBLEM: In misty or foggy weather, your glasses get covered with fine droplets and start streaking. You can’t see squat!

SOLUTION: Here are three fixes that work:

—Check at your local eyeglass store. There are optical products made to prevent lens fogging.

—Check at your local dive shop. There are de-fog products made for facemasks that work on glasses, too.

—If you have a bottle of Rain-X for your car windshield, apply some to your glasses. This stuff sheds water so well that you can drive through rainstorms without using wipers.

Reader Interactions

Comments

  1. Mr Whiskers says

    April 17, 2019 at 2:16 pm

    Cat Crap
    https://ekusa.com/product/cat-crap/

    • Road Bike Rider says

      April 17, 2019 at 4:24 pm

      Never heard of that one before! Thanks.

      • Mr Whiskers says

        April 18, 2019 at 10:42 am

        You’re very welcome. I used it decades ago and it hasn’t changed. I recently turn a friend onto it and he loves it. Now I live in a very humid climate and I’ve learned to just not remove my glasses when stopped.

    • Kerry Irons says

      June 5, 2025 at 6:55 am

      Yep. It’s been around for decades. I first heard of it with regards to snorkling.

  2. Tony M says

    April 18, 2019 at 7:55 am

    I know it’s gross to some, but spit works too. An old trick with swimming goggles.

  3. Walt says

    April 18, 2019 at 8:26 am

    A very small amount of liquid soap…wipe on and then wipe off.

  4. Carl Davis says

    April 23, 2019 at 4:47 am

    I once put the anti-fog solution I use on swimming goggles on the inside and outside of my riding glasses. Although the glasses did not fog, in the rain the water spread over the lenses making them very difficult to see through. My solution since has been anti-fog on the inside (to stop the fogging) and Rain-X on the outside so that rain beads up and runs off.

  5. syborg says

    June 5, 2025 at 12:14 am

    The best Scuba defog is baby shampoo. A couple drops per ounce of water is all you need.

  6. jacl rascoe says

    June 5, 2025 at 11:25 am

    RainX can damage sunglass, and eyeglass coatings, it depends on what material is used in the lenses and what the coatings are. Anti-reflective coatings are damaged the quickest of all the coatings. Also RainX can damage the paint on the frames.

    The only way to find out if your particular sunglass lenses will be damaged, besides trial and error, is to contact the manufacture and ask them if RainX will damage their coatings and or lenses.

  7. Rich Gordon says

    June 5, 2025 at 11:36 am

    My fog issue is exacerbated when wearing a cycling cap under my helmet. I wear the cap to prevent rain getting behind my glasses. In this case, limited airflow fogs the glasses up when stopped. Cat Crap did not work well for me, but that might be due to how I applied it. FogtechDX is better, but doesn’t last more than a couple of hours.

  8. Harvey Miller says

    June 7, 2025 at 4:21 pm

    No one should use Rain-X on their glasses and this warning is stated by the manufacturer of Rain-X. Simply… Rain-X is not formulated for lenses but for more details:

    Rain-X is designed for automobile windshields, not optical lenses.
    It contains solvents and hydrophobic chemicals that can damage lens coatings.
    It can ruin anti-reflective (AR), anti-scratch, or UV coatings:
    The chemicals can cause clouding, peeling, or permanent hazing over time.
    Skin and eye irritation risk:
    Rain-X isn’t skin-safe and could cause eye irritation if it migrates from your glasses.

    I’m amazed that this suggestion got through any vetting process, assuming there is a process to separate the wheat from the chaff.

  9. Rich Gordon says

    June 8, 2025 at 11:36 am

    THANK YOU. I did not look at the fine print.

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