IMHO we have two issues to consider here. One is the dimensions of the bag and the other is the size of the dog.
I totally agree that soft sided bags like the Sherpa brand which are collapsible are allowed leeway when compared to the measurements posted on airline sites.
However for a 18-20 pound and growing puppy you are stretching the limits of what may be comfortable for the pet.
By the way, what breed is the dog?
Last edited by RSSrsvp; Jun 30, 2014 at 6:59 am