I have a male CC puppy, 5 months, and am curious what his girth will be when full grown. If anyone can tell me the girth of their CC and it's weight. If you know the size of its belly girth that would be great as well. I'm looking for a harness and backpack that he will be able to grow into. I would like to get him used to wearing it now (with no weight). I am looking at the Ray Allen signature K9 harness. Its a harness that you can attach a pack too.