6203.49.07 - Containing 70 percent or more by weight of silk or silk waste

This HTS category, 6203.49.07, specifically classifies trousers, bib and brace overalls, breeches, and shorts for men and boys that are made of textile materials not specifically covered by earlier provisions within heading 6203. The defining characteristic for this sub-classification is that the garment must contain 70 percent or more by weight of silk or silk waste. This material composition is critical for accurate classification within this segment of men's and boys' wear.

Distinguishing this category from its sibling, 6203.49.09 ("Other"), is the precise material content. While 6203.49.09 would capture trousers, bib and brace overalls, breeches, and shorts of other textile materials not meeting the silk threshold, 6203.49.07 is exclusively for those predominantly composed of silk. Therefore, the primary differentiating factor is the high percentage of silk content, directing goods with this material composition to this specific classification.

The subcategories within 6203.49.07 further refine the classification based on the specific type of garment. These include bib and brace overalls (6203.49.07.10), trousers and breeches (6203.49.07.20), and shorts (6203.49.07.30). This subdivision allows for more granular tracking and statistical reporting of these distinct types of silk-content apparel within the men's and boys' category.