5408.33.15.00 - Containing 85 percent or more by weight of man-made filaments, the thread count of which per cm (treating multiple (folded) or cabled yarns as single threads) is over 69 but not over 142 in the warp and over 31 but not over 71 in the filling (618)

This HTS category, 5408.33.15.00, specifically classifies woven fabrics primarily composed of man-made filaments. The defining characteristic for inclusion here is the fabric's thread count, which must exceed 69 threads per centimeter in the warp and fall between 31 and 71 threads per centimeter in the filling. When determining thread count, multiple or cabled yarns are treated as a single thread. This precise thread count, along with the high percentage of man-made filaments, differentiates these fabrics from other woven materials.

Distinguishing this category from its siblings, 5408.33.30.00 covers woven fabrics containing at least 30% silk or silk waste by weight, provided their value exceeds $33 per kilogram. The other sibling, 5408.33.90, acts as a residual category for "other" woven fabrics within this broader group that do not meet the specific criteria of 5408.33.15.00 or 5408.33.30.00. Therefore, the precise thread count and the high proportion of man-made filaments are the critical factors for classification under 5408.33.15.00.

As this node represents a leaf in the HTS hierarchy, there are no further subcategories. Classification within 5408.33.15.00 is final and determined by the aforementioned criteria. Examples of fabrics that would fall under this classification include certain fine damasks, satins, and twills woven with high thread counts of artificial filament yarns, such as polyester or nylon, where the thread density and material composition meet the specified requirements.