5407.69.10.10 - Weighing not more than 170 g/m² (619)

This classification, HTS Code 5407.69.10.10, pertains to unbleached or bleached woven fabrics of synthetic filament yarn, specifically those containing 85 percent or more by weight of polyester filaments, and further characterized by a weight not exceeding 170 grams per square meter. These fabrics are derived from synthetic filament yarns, distinguishing them from fabrics made from staple fibers. The exclusion of woven fabrics obtained from materials of heading 5404 (which covers synthetic monofilaments of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm, or strip or the like of an apparent width not exceeding 5 mm) is also a key definitional element.

The primary distinction for this subcategory lies in its weight. It is specifically for fabrics weighing *not more than* 170 g/m². This directly differentiates it from its sibling category, 5407.69.10.60, which covers similar fabrics but weighing *more than* 170 g/m². This weight threshold is a critical factor in determining the appropriate classification and often reflects differences in weave density, yarn count, and potential end-uses.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce under this specific code. Therefore, the classification is definitive for unbleached or bleached woven fabrics composed predominantly of polyester filaments with a weight under the specified limit. Classification decisions at this level rely heavily on the accurate determination of the fabric's fiber content and its precise weight per square meter, as well as confirmation that it is not derived from materials covered by heading 5404.