HTS code 9902.12.81 covers "Woven fabrics of combed vicuna hair, such fabrics containing 85 percent or more by weight of vicuna hair, of a weight not exceeding 200 g/m2 (provided for in subheading 5112.11.60)." under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.