6103.10.70.00 - Containing 70 percent or more by weight of silk or silk waste (743)

This HTS classification, 6103.10.70.00, specifically covers knitted or crocheted suits for men or boys that are composed of 70 percent or more by weight of silk or silk waste. These garments are tailored and designed to be worn as a coordinated set, typically consisting of a jacket and trousers. The defining characteristic for inclusion in this category is the predominant silk content.

This category is distinguished from its sibling categories by its material composition. While other subheadings under 6103.10 address suits made of artificial fibers or cotton, this specific heading is exclusively for suits where silk or silk waste forms the overwhelming majority of the material by weight. The "Of other textile materials" parent category acts as a broad grouping, with this subheading providing the precise silk-based distinction.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification within 6103.10.70.00 relies entirely on confirming that the knitted or crocheted men's or boys' suit meets the 70 percent or more silk or silk waste by weight criterion.