 Dilutes can also have what is called an "Isabella" coloration, meaning that there is silver shading on the coat color.All of these color variations are acceptable, but the coat color must be solid and well-blended throughout the whole body of the dog.Horse-coat (unusual but regaining ground), rough to the touch, extremely prickly and off-standing, soft in one direction and harsh in the other; brush-coat, with longer hair and a smoother feel; and bear-coat (not recognized by the AKC; there is ongoing debate as to whether this recessive gene is from an ancient relationship with the Chow Chow or modern crossbreeding of the two breeds).