Mesh car crate for anxious dogs

After a LOT of trial and error, this is the only thing I have found that keeps my anxious rescue pup reasonably calm and safe in the car. It wore out after a few years and I immediately replaced it. She is 50 lb and the large fits well, but they have other sizes that I imagine would work well for smaller pups! It's also pretty light and easy to fold up. She used to cry and jump all over the car or tangle herself in her harness, and this makes driving a lot safer and easier for both of us!