6104.59.40.00 - Containing 70 percent or more by weight of silk or silk waste (742)

This HTS classification, 6104.59.40.00, pertains to skirts and divided skirts, knitted or crocheted, that are fabricated from textile materials other than artificial fibers and are not covered by other specific subcategories within 6104.59. Crucially, the distinguishing factor for this particular classification is that the garments must contain 70 percent or more by weight of silk or silk waste. This emphasis on a high silk content is the primary criterion for inclusion.

To differentiate this category from its siblings, consider 6104.59.10, which is exclusively for skirts and divided skirts made of artificial fibers. The sibling category 6104.59.80 encompasses all other knitted or crocheted skirts and divided skirts of "other textile materials" not specifically defined elsewhere. Therefore, 6104.59.40.00 carves out a distinct niche for silk-rich garments within the broader "other textile materials" group.

As this is a leaf node in the HTS structure, there are no further subcategories to introduce. The classification is complete at this level, focusing solely on the material composition of the knitted or crocheted skirt or divided skirt. Examples of items falling under this code would include women's or girls' knitted skirts or divided skirts where the overwhelming majority of the fabric's weight is derived from silk or reclaimed silk fibers.