6204.63.08 - Containing 36 percent or more by weight of wool or fine animal hair

This HTS category encompasses women's or girls' trousers, bib and brace overalls, breeches, and shorts that are not swimwear and are constructed from synthetic fibers. The defining characteristic of this sub-classification is that the fabric composition contains 36 percent or more by weight of wool or fine animal hair, in addition to synthetic fibers. This blend of materials dictates its placement within the broader "Of synthetic fibers" heading.

Within the "Trousers, bib and brace overalls, breeches and shorts" heading, this specific category is distinguished by its material composition and the inclusion of wool or fine animal hair. It differentiates itself from purely synthetic fiber garments by the significant presence of natural animal fibers. This allows for the classification of garments that might otherwise be broadly categorized as synthetic but possess qualities attributed to the added wool or fine animal hair content.

The subcategories under 6204.63.08 further refine classification based on the intended wearer. The options are "Women's" and "Girls'," differentiating based on the garment's design, sizing, and intended market. This distinction is crucial for accurate inventory management, duty assessment, and statistical reporting in international trade.