Some waterproof dog coats come with a warm fleecy lined inside and wll have adjustable body and chest fasteners. The Waterproof Woof parka protects your dog in all weather.  Look for a dog coat has that has practical features like waterproof material to keep your dog dry, fleece lined to keep your dog warm, holes in the neck to allow for a lead to be threaded through or one with it's own pocket that the coat folds back into when not needed. Check out the great range of waterproofed dog coats in out store.