We bought this a few years ago to take Bailey (puppy) on hikes because she couldn't walk as far as our larger dogs. We have since purchased the large size. We purchased from the K-9 website. (k9sportsack.com) I'm sorry about the photos. I'm not very techy.
We love it because it zips up the entire way. When she gets tired she just turns around and puts her front paws on me and I know she's ready to ride. It is very comfortable and has a chest strap.
$25 + $5 for shipping. Please email @ [email protected] if you have questions. Thanks for looking!