6104.63.15.10 - Trousers and breeches (448)

This HTS classification, 6104.63.15.10, specifically covers trousers and breeches that are knitted or crocheted, made from synthetic fibers, and notably contain 23 percent or more by weight of wool or fine animal hair. This composition is the defining characteristic for this subcategory, indicating a blend that offers properties of both synthetic materials and the warmth or texture of wool or fine animal hair.

Distinguishing this category from its sibling, 6104.63.15.20 (Shorts), is the length and design of the legwear. While both fall under "Trousers, bib and brace overalls, breeches and shorts," this classification is exclusively for garments covering the legs from the waist down to the ankle or calf, whereas shorts are designed to be significantly shorter, typically ending above the knee.

As this node is a leaf node within the HTS structure, there are no further subdivisions. Classification at this level is definitive based on the material composition (synthetic fibers with a significant percentage of wool or fine animal hair) and the garment type (trousers or breeches). Therefore, any knitted or crocheted legwear fitting these specific material and design criteria would be classified here.