HTS code 9902.13.54 covers "Hand muffs of knitted fabrics of polyester coated with plastics, such muffs stuffed with synthetic microfiber for thermal insulation, each with side openings having elastic closures, with one exterior pocket with zipper closure and weighing not more than 453.592 g (provided for in subheading 6117.80.95) " 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.