6203.41.25.20 - Boys' (447)

This classification pertains to boys' trousers and breeches specifically constructed from wool or fine animal hair. The defining characteristics for inclusion in this subcategory are that the garments must contain elastomeric fiber, exhibit water-resistant properties, lack belt loops, and weigh more than 9 kilograms per dozen. These detailed specifications are crucial for distinguishing these items from other classifications within the broader category of men's or boys' trousers.

The primary distinction from its sibling category, 6203.41.25.10, lies in the intended wearer. While the sibling covers "Men's," this node exclusively addresses "Boys'" garments, reflecting the granular nature of HTS classification to account for variations in sizing and style often associated with different age groups and genders. Both share the overarching material composition and construction criteria, but the target demographic is the key differentiator.

As this classification represents a leaf node within the HTS structure, there are no further subcategories. Consequently, the focus shifts to practical application and ensuring that all specific criteria – the presence of elastomeric fiber, water resistance, absence of belt loops, and the weight per dozen – are meticulously verified for accurate classification of boys' wool or fine animal hair trousers and breeches.