HTS code 9902.13.65 covers "Men's or boys' woven sleepwear of man-made fibers, the foregoing comprising tops and sleepwear bottoms presented separately and not in sets, the foregoing designed to be worn in bed (provided for in subheading 6207.99.85)" 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.