Drake has a doggy back pack that he wears when we go on long hikes, camping, and rock climbing. Andrew purchased it online a few years ago. Drake doesn't mind carrying it. We usually put his food in in if we are going camping and other stuff as well like light gear, etc...

We purchased Drake's without trying it on. It has buckles to adjust it around his chest so that it is a good fit. The sizes are according to weigh range. The pockets are huge and Drakes has pockets on the big side pockets as well.

Only downfall is when Drake sees something and takes off after it. One of us ends up having to go fetch the back pack!!