6115.30 - Other women's full-length or knee-length hosiery, measuring per single yarn less than 67 decitex:

Category 6115.30 specifically classifies "Other women's full-length or knee-length hosiery" where the single yarn used in their construction measures less than 67 decitex. This generally encompasses a broad range of women's hosiery, excluding specialized graduated compression items. The key distinguishing factor for this category is the decitex measurement of the yarn, indicating finer yarns are utilized in the manufacturing process.

This category is differentiated from its sibling, 6115.10, which is reserved for graduated compression hosiery, such as those designed for varicose veins. While both fall under the broader umbrella of knitted or crocheted hosiery, 6115.30 focuses on general-purpose hosiery not intended for therapeutic compression. The distinction is crucial for accurate tariff application based on the functional characteristics and specific construction of the hosiery.

Further subdivision within 6115.30 is provided to account for material composition. Subcategory 6115.30.10.00 is designated for hosiery made from silk or silk waste, provided it constitutes 70 percent or more by weight. The residual category, 6115.30.90, covers all other hosiery meeting the decitex and full-length/knee-length criteria but not predominantly composed of silk. This allows for precise classification based on primary fiber content.