6107.99.10.30 - Sleepwear (651)

This classification covers men's or boys' sleepwear knitted or crocheted, specifically those made from man-made fibers, excluding those made from cotton or certain other textile materials. The term "sleepwear" in this context encompasses garments primarily designed for sleeping or lounging within the home, such as pajamas, nightshirts, and similar comfortable attire. The defining characteristic for inclusion here is the construction from man-made fibers.

While the parent category covers "Other" articles of apparel, knitted or crocheted, this specific subcategory drills down into the material composition of sleepwear. The distinction from other "Of other textile materials" categories lies in the exclusive use of man-made fibers, differentiating it from sleepwear made from wool, fine animal hair, or vegetable fibers. This ensures precise tariff application based on the predominant fiber content.

As this is a leaf node, there are no further subdivisions. Therefore, classification within 6107.99.10.30 hinges on meeting the criteria of being men's or boys' sleepwear, knitted or crocheted, and predominantly composed of man-made fibers. Examples include polyester pajama sets, nylon nightgowns, and acrylic loungewear, provided they are not specifically classified under a more specific HTS code.