5408.33.05 - Containing 36 percent or more by weight of wool or fine animal hair

This HTS category, 5408.33.05, encompasses woven fabrics specifically composed of artificial filament yarn and containing a significant proportion of wool or fine animal hair. The defining characteristic of this classification is that the fabric must be made with at least 36 percent by weight of wool or fine animal hair. This material blend is crucial for its placement within this specific sub-heading, differentiating it from fabrics with lower concentrations of these natural fibers.

Within the "Of yarns of different colors" sub-category, this heading stands apart from its sibling category, 5408.33.10, which is designated for "Other" woven fabrics of artificial filament yarn with mixed colors that do not meet the 36% wool or fine animal hair threshold. Therefore, the primary distinguishing factor is the specific minimum percentage of wool or fine animal hair content.

The further subdivision into subcategories 5408.33.05.10 ("Not combed") and 5408.33.05.20 ("Combed") reflects the processing of the wool or fine animal hair component. This distinction is important for accurate classification, indicating whether the wool or fine animal hair fibers used in the construction of the woven fabric have undergone a combing process, which results in a more uniform and refined fiber length.