6209.90.50.00 - Containing 70 percent or more by weight of silk or silk waste

This HTS classification, 6209.90.50.00, specifically designates babies' garments and clothing accessories that are not knitted or crocheted and are primarily composed of silk or silk waste. To fall under this heading, the item must contain 70 percent or more by weight of silk or silk waste. This category encompasses a range of clothing items designed for infants and very young children, such as layettes, sleepers, shirts, pants, and outerwear, provided they meet the material composition requirement and are not made from knitted or crocheted fabrics.

This category distinguishes itself from its siblings by its specific material composition. Unlike category 6209.90.05.00, which covers babies' garments of wool or fine animal hair, or the "Of artificial fibers" subcategory (which would encompass items made from synthetic or regenerated cellulose fibers), this heading is exclusively for silk-based articles. Furthermore, it differs from the residual category 6209.90.90.00 ("Other") which captures babies' garments and accessories made of textile materials not otherwise specified in this subheading group, ensuring that silk content is the definitive classification factor here.

As this is a leaf node, there are no further subcategories under 6209.90.50.00. Classification at this level is determined solely by the material composition (70% or more silk or silk waste) and the fact that the garments are for babies and are not knitted or crocheted. If an item for babies, not knitted or crocheted, is composed of a mixture of fibers where silk is less than 70% but another textile material dominates, it would be classified elsewhere within Chapter 62, potentially under the "Of other textile materials" heading.