Most of the fur coats have outer shells that are water-resistant. However, in most cases, the fur coat is not much water-resistant. Hence, overall they have limited waterproofing ability. Furthermore, with a steady amount of moisture (from both outside and inside), they fail to maintain their water resistance. As a result, they make your body wet. Thus it is better to add water-resistant inner layers beneath such items. Also important is to choose an item with a higher water-resistant outer layer. Some of the best options are Patagonia Sweater, Mountain Hard-wear Ghost Whisperer, Mountain Equipment Light-line, or Black Diamond Cold Forge Hooded.