Bosch was unsure about using this, until he found out it went with his leash for walking outside. He was always great letting me put on a collar or chain for the same reason. Now he gets excited when I pick it up, and is cooperative putting on his vest. It took me a while to get it to fit right (he is a giant). He loves wearing it, even in the house, like in the video I submitted. I love it too, because he no longer pulls the leash when we walk. The K9 vest makes our walks a better experience f...