5106.10.00 - Containing 85 percent or more by weight of wool

This HTS category, 5106.10.00, specifically classifies yarn made from carded wool, provided it contains 85 percent or more by weight of wool and is not presented for retail sale. This designation focuses on the material composition, requiring a substantial majority of the yarn's weight to be derived from wool fibers, and excludes finished products packaged for consumer purchase.

It is crucial to distinguish this category from its sibling, 5106.20.00.00, which covers wool yarn containing *less* than 85 percent wool. The precise percentage of wool content is the defining factor for classification at this level. Therefore, any yarn falling under 5106.20.00.00, even if carded and not for retail sale, would be classified separately due to its lower wool composition.

Within 5106.10.00, further subdivisions exist to refine the classification based on the physical characteristics of the wool fibers. The subcategories, 5106.10.00.10 and 5106.10.00.90, differentiate based on the average fiber diameter. This distinction is important for understanding potential end-use applications and varying market qualities of wool yarn. The primary subcategory, 5106.10.00.10, applies when the average fiber diameter is 34.40 microns or greater, while the "Other" category, 5106.10.00.90, encompasses all other wool yarns meeting the 85% or more wool criterion.