5210.19.20 - Satin weave or twill weave, other than 3-thread or 4-thread twill or cross twill

This HTS category, 5210.19.20, specifically classifies unbleached woven cotton fabrics that contain less than 85% cotton by weight, are primarily mixed with man-made fibers, and weigh no more than 200 g/m². The defining characteristic of goods within this subcategory is their weave structure. It encompasses fabrics with a satin weave or a twill weave, with the crucial exclusion of specific twill variations.

It is important to distinguish this category from its sibling, 5210.19.10.00, which exclusively covers 3-thread or 4-thread twill weaves, including cross twill. Therefore, this category applies to any unbleached cotton blend fabric meeting the weight and fiber content criteria that *does not* utilize these particular twill structures, opting instead for other twill patterns or a satin weave.

Within this classification, two distinct subcategories exist to further refine the classification: 5210.19.20.20 for "Sateens," which refers to fabrics with a characteristic smooth surface achieved through a satin weave, and 5210.19.20.90 for "Other," which captures any remaining fabrics that fit the broader description but are not sateens. This subdivision allows for precise identification based on the specific weave construction.