6204.69.45 - Containing 70 percent or more by weight of silk or silk waste

This HTS category, 6204.69.45, specifically classifies women's or girls' trousers, bib and brace overalls, breeches, and shorts that are constructed from textile materials other than those explicitly listed in preceding subcategories. The defining characteristic for inclusion here is that these garments contain 70 percent or more by weight of silk or silk waste. This focus on a high silk content distinguishes it from other categories within the "Of other textile materials" group, ensuring that garments predominantly made of silk are correctly identified.

At this level, the primary distinction from its sibling category, 6204.69.65 (Other), lies in the material composition. While 6204.69.65 would encompass similar garments made from a different predominant textile material not otherwise specified, 6204.69.45 is exclusively for those with a significant silk content. This allows for precise tariff application based on the principal fiber.

Further subdivision within this category is organized by the specific type of garment. Subcategories 6204.69.45.10 and 6204.69.45.20 exist to differentiate between trousers, breeches, and shorts, and bib and brace overalls, respectively. This granular classification is crucial for accurate record-keeping and for applying any specific duties or trade regulations that may vary based on the garment's design and intended use.