6104.63 - Of synthetic fibers:
Sub-classifications
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6104 6310
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6104 6310 10
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Overview
This HTS category, 6104.63, specifically classifies knitted or crocheted trousers, bib and brace overalls, breeches, and shorts for women or girls that are exclusively made from synthetic fibers. This material requirement is the primary distinguishing factor, separating them from closely related categories.
Unlike sibling categories such as 6104.61.00 (wool or fine animal hair), 6104.62 (cotton), and 6104.69 (other textile materials), the defining characteristic here is the composition. Goods classified under 6104.63 must be constructed using fibers that are man-made and synthesized, such as polyester, nylon, or acrylic. The cut, style, and intended use as lower-body garments for women and girls remain consistent with the parent category.
Within this classification, further distinctions are made based on the specific garment type. The subcategory 6104.63.10 covers bib and brace overalls, which are characterized by their upper bib portion and attached shoulder straps. The subsequent "Other" subheading is reserved for all other qualifying trousers, breeches, and shorts made of synthetic fibers that do not fall under the bib and brace overall designation.