6203.49.60 - Containing 70 percent or more by weight of silk or silk waste

This HTS classification, specifically 6203.49.60, pertains to men's or boys' trousers, bib and brace overalls, breeches, and shorts that are not knitted or crocheted and are constructed from textile materials other than artificial fibers. The defining characteristic for this subcategory is that the garment must contain 70 percent or more by weight of silk or silk waste. This material composition is the primary driver for its distinct classification within the broader category of "Of other textile materials."

Distinguishing this category from its siblings, particularly 6203.49.90 which is designated as "Other," is crucial. While both fall under the umbrella of "Of other textile materials" and "Other" at their respective levels, 6203.49.60 is specifically keyed to the high silk content. The "Other" category (6203.49.90) would encompass garments meeting the general description but made from a different predominant textile material not specifically enumerated elsewhere, or a blend where silk content is less than 70%.

The subcategories within 6203.49.60 further refine the classification based on the specific type of garment. This includes distinct provisions for "Bib and brace overalls" (6203.49.60.10), "Trousers and breeches" (6203.49.60.20), and "Shorts" (6203.49.60.30). These subdivisions are established to provide a more granular level of detail, allowing for precise tracking and potential tariff differentiation based on the intended use and style of the silk-rich bottom wear.