I had the nightmare experience: a deer ran in front of my car on the highway and the car was totaled. Air bags deployed and it was an incredibly violent impact. I had my dog in the car, wearing this harness, strapped in to the seatbelt in the backseat and he was completely fine. If he hadn’t been in the harness he absolutely would’ve gone through the windshield. I cannot express enough how grateful I am. Thank you Ruffwear for making this harness, thank you so much. To anyone considering this product, know that I’ll never have a dog in the car without this harness for the rest of my life!