Can you wash a hudson bay coat?
However, an improved if you are referring to the hbc blanket coat is that you CAN wash their coats and blankets by hand with a gentle cleaner like woolite, then blot the excess water and lay out flat to dry (preferably on your lawn in the shade). The wool is pre-shrunk so will not be damaged. The coats are made of the same wool as the blankets which are washed over and over again in their lifetimes (which can be many many decades)… more info at http://www.hbc.