The coats of domestic dogs are of two versions: "double" becoming common in dogs (as well as wolves) originating from colder climates, produced up of a coarse guard hair as well as a soft down hair, or "single", Using the topcoat only. Breeds could have an occasional "blaze", stripe, https://leonardol457vob6.blazingblog.com/31850359/how-dogs-can-save-you-time-stress-and-money