6103.43.20.10 - Containing 23 percent or more by weight of wool or fine animal hair (459)

This HTS classification, 6103.43.20.10, specifically covers men's or boys' bib and brace overalls that are knitted or crocheted and are predominantly composed of synthetic fibers. These garments are characterized by their full-length trousers with attached suspenders or bib, designed for workwear or casual use. The key defining feature for this classification is the material composition, requiring at least 23 percent by weight of wool or fine animal hair, which differentiates it from other overalls made from predominantly synthetic materials.

Within the broader category of "Trousers, bib and brace overalls, breeches and shorts" for men or boys, this specific subcategory distinguishes itself by its construction style (bib and brace overalls) and its material makeup. It falls under the "Of synthetic fibers" heading, but the inclusion of "Containing 23 percent or more by weight of wool or fine animal hair" acts as a further refinement. This means that while the base material might be synthetic, the presence of a significant amount of wool or fine animal hair triggers this specific classification.

As this node represents a leaf node in the HTS structure, there are no further subcategories. Therefore, the classification relies entirely on the precise definition provided by the HTS code and its accompanying description. When classifying goods under this code, customs professionals will verify that the items are knitted or crocheted bib and brace overalls for men or boys, and importantly, that the textile material contains 23 percent or more by weight of wool or fine animal hair. Any deviation in material composition or garment type would necessitate classification under a different HTS code.