Back window pet barrier

We have two large dogs who love to hang their head out the back window of our 2020 TDR Pro. Any ideas of good barriers to use for the back window? We have a BP Fabrication barrier for the inside, but they don’t make any for the back window. Thanks for any suggestions.

 

I just roll the window down enough to let our doggo fit his head through, never had an issue, but I'm interested in seeing if there's another way

 

So I know the molle panel craze is looked down upon but orangeboxx does offer a rear window molle panel if you want to completely block it out. Have no idea how it's mounted, have just seen it posted in the past.

https://www.orangeboxxfabrication.com/online-store/5Th-Gen-rear-hatch-p476026280

 

https://www.4runnerlifestyle.com/products/visual-autowerks-4runner-hatch-window-vent

 

I've been looking to add this back net to the window. I've had their behind the 2nd row cargo net for a while as one of my dogs loves to hop the bench. Its been an easy install/remove depending what I need for the drive that day. https://raingler.com/products/2010-newer-toyota-4runner-5th-gen-back-window-net

 

I bought an adjustable guard for keeping my pups out of the drivers area and it worked perfectly. It was cheap too and removable in seconds. Chewy has something like I got for $45 bucks. You can adjust it and put it anywhere you want.

 

I just use extra leashes and loop them around the front handles of the sliding cargo tray. Hook it to the back of their harnesses and it keeps them in the back.