 Any material might be used, at a greater cost, including cashmere (from the Kashmir goat), angora (from the Angora rabbit), alpaca, or huarizo (from a hybrid of alpaca and llama).Evening over-frock coats, worn over Evening dress could be made from Mohair (from the Angora goat), which produced an additional sheen.Evening over-frocks often have silk revers, like the dress coat worn underneath.