Sable is a rare color found in American Cocker Spaniels. It is a color found more often in herding breeds, such as Shelties and Collies. In Cocker Spaniels, it is a lacing of black hairs over a lighter ground color. In Collies and Shetland Sheepdogs, a brown color ranging from golden to mahogany. A sable cocker looks like a ASCOB cocker with darker hairs overlaid on the lighter color. It appears to have black/brown tipped hairs, which is not true. The black/brown hairs are intermingled with the other colored hairs. You can follow the darker hair back to it's root, it's solid, not veriegated. Sables usually have darker ear hair and darker around the eyes and sometimes the muzzle. Sable Cockers can be found in both, solid and parti varieties.
A Sable Cocker may be bred to any color, but to get a sable you will need to breed to a tan pointed dog. Or a sable to sable breeding.