omg so cute!!! kinda hard to tell in those pics, but is your aussie a regular or a mini?? he is gorgeous!! my boy is 23 inches tall, and abnormally long backed, 28 inches, and someone at the dog park yesterday actually thought he was a MINI!!! LOL I was like uhh no he is the MAXIMUM height for a STANDARD aussie. lolololol EDIT: okay, just looked at the pics again, Im guessing hes just a small(er than my aussie lol) standard.

theres a couple huskies I see at the dog park frequently with that kind of harness and I never knew what the heck they were for, but I guess they are for sledding?? these dogs at that park are really old and it looks like their owner almost uses the harness for holding them up, helping them walk.