Animals at a French Zoo - Cashmere goat - Long haired goat. Part of Box 209 Boswell collection - Old and New French Zoo. A cashmere goat is any breed of goat that produces cashmere wool, the goat's fine, soft, downy, winter undercoat, in commercial quality and quantity. This undercoat grows as the day length shortens and is associated with an outer coat of coarse hair, which is present all the year and is called guard hair. Most common goat breeds, including dairy goats, grow this two-coated fleece.