6213.90 - Of other textile materials:

This HTS category, 6213.90, encompasses handkerchiefs and similar articles that are not made of cotton or silk. The defining characteristic of this classification is the textile material used in their construction, excluding the specifically enumerated fibers. Therefore, items falling under this heading will be manufactured from materials such as linen, wool, or other vegetable fibers, as well as man-made fibers, provided they do not meet the criteria for other, more specific handkerchief classifications.

Distinction from sibling categories is primarily based on material composition. Category 6213.20 specifically covers handkerchiefs and similar articles made of cotton. This category, 6213.90, serves as a residual classification for handkerchiefs made from all other textile materials not otherwise specified. This ensures accurate segregation based on the primary fiber content, which often impacts tariff rates and trade statistics.

Within this category, further subdivisions exist to refine the classification based on the type of "other textile material." Subcategory 6213.90.10.00 specifically addresses handkerchiefs made of man-made fibers, offering a more granular classification for these commonly used textiles. The residual subcategory, 6213.90.20.00, then covers any remaining handkerchiefs made from other textile materials that do not fall into the man-made fiber classification. This hierarchical structure allows for precise identification and consistent application of customs duties.