6103.29.20.28 - Containing 70 percent or more by weight of silk or silk waste (734)

This HTS classification, 6103.29.20.28, specifically identifies knitted or crocheted ensembles for men or boys that are composed of 70 percent or more by weight of silk or silk waste. These ensembles are distinct from other categories within heading 6103 by their specific material composition, emphasizing a high silk content which dictates their luxurious nature and associated classification. This category serves as a terminal node, meaning there are no further subdivisions under this specific HTS code.

The ensembles falling under this classification are typically coordinated sets of garments designed to be worn together, such as a jacket and trousers, or a jacket and shorts, all knitted or crocheted. The critical factor for classification here is the dominance of silk or silk waste in the material composition, setting it apart from ensembles made of other textile materials, even if they share a similar garment structure. The distinction from sibling category 6103.29.20.30, which is also classified under "Other" ensembles of other textile materials, lies precisely in the explicit requirement for a silk content of 70% or more by weight.