I have a large tech air 5 vest that has never been worn. My plan was to use this for racing and track days this year, but I recently just purchased the Tech Air 10 so I don't have a need for the 5 any longer. I bought it in February 2022. I did not register it to my name or even plug it in for that matter. Looking to get $625 shipped, but open to offers as well. Images: https://photos.app.goo.gl/amkXT6Kz9edhbsyW7