Suri Llamas represent an extremely rare fiber type characterized by lustrous, hanging fiber that forms distinctive pencil locks or ringlets, completely different from the typical crimpy, fluffy llama fleece. The Suri designation parallels the alpaca industry's Suri alpaca classification, where similar lustrous, hanging fiber distinguishes Suri alpacas from the more common Huacaya type with crimpy fleece. In llamas, the Suri phenotype is extraordinarily rare, occurring as a recessive genetic trait that requires specific breeding to produce and maintain. All llamas remain scientifically classified as Lama glama regardless of fiber type, with Suri indicating a specific genetic expression affecting fiber structure.
The genetics producing Suri fiber in llamas are not fully understood but appear to follow recessive inheritance patterns requiring both parents to carry Suri genes for offspring to express the characteristic lustrous, hanging locks. This genetic rarity means Suri llamas represent a tiny fraction of the total llama population, with estimates suggesting fewer than 1-2% of llamas carry Suri genetics. Dedicated breeding programs work to concentrate and preserve these rare genetics, though maintaining Suri characteristics while ensuring genetic diversity for health and vigor presents ongoing challenges for breeders.
Suri llamas may also be referred to as "lustrous llamas," "pencil-lock llamas," or "silky llamas," though the Suri designation specifically indicates the hanging, lustrous fiber structure distinguishing them from Silky llamas that have soft but crimpy fiber. The term became standardized in North American llama breeding during the 1990s-2000s as breeders recognized and began selectively breeding for this distinctive trait. Suri llamas essentially represent the llama equivalent of Suri alpacas, combining the rare fiber phenotype with llama size, strength, and versatile working capabilities that alpacas lack, creating animals valued both for their unique fiber and their practical applications in packing, guarding, or farm work when their fiber characteristics permit such uses.

