6210.20.90.40 - Having a fiber content of 70 percent or more by weight of silk or silk waste (734)

This HTS category, 6210.20.90.40, specifically classifies anoraks, windbreakers, and similar garments that are not knitted or crocheted, are made up of fabrics covered by headings 5602, 5603, 5903, 5906, or 5907, and are further classified under "Other" garments of the type described in heading 6201, and "Other" within that group. The defining characteristic for this particular subcategory is that the garment must have a fiber content of 70 percent or more by weight of silk or silk waste. This precise material composition is the primary criterion for inclusion here.

This classification is distinguished from its sibling category, 6210.20.90.49, "Other," by the explicit requirement for a silk content of 70 percent or more. The sibling category would encompass garments meeting the general criteria for anoraks and windbreakers of this type, but with a different fiber composition or a lower percentage of silk that does not meet the 70 percent threshold.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification into 6210.20.90.40 hinges solely on satisfying the conditions related to its construction from specified fabrics, its classification as an anorak or similar article, and the critical 70 percent or greater silk or silk waste fiber content by weight. Examples of such items would be lightweight silk windbreakers or lined silk parkas where silk is the predominant fiber.