Hey Bagsessed,
I'm in Vancouver and I haven't had any problem with my signature bags in the rain - and we've had A LOT of it over the last little while.
Have fun during your visit here! It's a beautiful city even in the middle of rainy, dark November. This is probably the worst month of the year in Vancouver. Are you coming for business or pleasure?
PS - if you're planning on doing any
Coach shopping while you're here, there are two stores..one downtown (Georgia and Burrard) and one at Oakridge Centre mall. Holt Renfrew downtown also carries Coach.