On the Crosstrek, the Reflectix fits nicely into the groove at the bottom of all of the windows, and with a little extra material around the edges, it just folds into the edges and stays put. No extra securing was needed.

After sleeping in the Crosstrek for those very cold nights in Yosemite, the Reflectix served a purpose other than just adding insulation. In slightly warmer weather on a previous trip, we woke up to condensation covering all of the glass in the vehicle. Dripping wet windows. With the Reflectix in place, the windows were all dry when we woke up - except for the metal frames around them, which could quickly be wiped dry. It did seem to help us stay a bit warmer than on previous trips. Added bonus, it will keep the car much cooler when we hit the hot desert days!

We use a Subaru windshield screen to block the windshield. It fits snug enough that we can make the car almost dark, even when parked next to the lights on the campground bathroom.

For the warmer trips we’ve taken, we just use the foam and blankets. We also use mesh sun shades on the rear windows. They allow the window to be rolled down, but still covered. I don’t want bugs buzzing around in the car, so these keep the pests out, and let air in. These are just stretchy mesh material and stretch over the windows. No custom fitting necessary.