I live in Toronto, (but I'm from Sarnia! what's up!) and I didn't even know Columbia made Dog Coats! To be honest, I don't know if a "Columbia" dog coat is necessary? but I'm sure it is warm enough.
It looks very similar (almost identical) to the one we got Derby that was labelled Canine Equipment. It's good for the Canadian winters!
And for boots we got epiks! they are AMAZING!
EPIKS.net