We have a one year old miniature dachshund and a 13 year old standard dachshund. Neither are physically capable of doing long hikes. (short/ old legs) So I bought the air 2 with high hopes that 1. I could train the puppy to love it and 2. I could train my senior pup to suck it up since he's never experienced anything like it lol. We had reservations about back support and the fear that our senior dog, whose a typical "bark at everything" kinda dachshund was going to now be able to bark directly into our ear. Our first time out in public with them ( with no issues on test runs through the neighborhood) on our backs was a HUGE SUCCESS. Zero fussing. Zero barking. Zero hassall and tons of "awwwws" from strangers who have apparently never seen a dog in a backpack. We cannot wait to take them on big adventures! PS. back support for the pups seems great!

This sack is perfect for my 10yr old shi’tzu, great way to get around on a kick scooter. I purchased the size small and it’s perfect for my 13lb kiddo! He loves it!

The medium Air 2 is a little large for our 5 month old American Eskimo, but she'll grow into it. At the moment she can wiggle around more than is desirable, but it gets the job done. The collar clip is a huge help in getting a wiggly puppy into the sack. We carried it with us when apple picking in the NC mountains, wanting to be prepared in case she got tired. Instead, it proved to be invaluable when Tilly started trying to eat fallen apples, most full of yellow jackets. We were able to fill our bags without worrying about a sting. So far we've taken it along on trail walks, but she has more stamina than we do in the woods!

GiGi loves her new Sport sack!!!!

I was surprised how relaxed our dog is when in the sack, seems to love it.