5309.21.30.55 - Poplin or broadcloth (614)

This HTS classification, 5309.21.30.55, specifically covers woven fabrics of flax that contain less than 85 percent by weight of flax. Within this subcategory, the fabric must be unbleached or bleached. Crucially, this classification applies to fabrics that contain both cotton and man-made fibers, and importantly, these fabrics are subject to man-made fiber restraints. The term "poplin or broadcloth" refers to specific weave structures and fabric densities that characterize these types of textiles.

This category is distinguished from its siblings by its specific weave type and the presence of both cotton and man-made fibers alongside flax. For instance, 5309.21.30.60 covers "Sheeting," which often implies a plain weave and a different typical thread count, while 5309.21.30.65 pertains to "Printcloth," typically a lightweight, plain-weave fabric. The "Other" category, 5309.21.30.70, serves as a residual for unbleached or bleached woven flax fabrics containing less than 85% flax, cotton, and man-made fibers, which do not fit the specific descriptions of poplin/broadcloth, sheeting, or printcloth, and are also subject to man-made fiber restraints.

As this is a leaf node, there are no further subcategories. Therefore, the primary focus for classification within 5309.21.30.55 is on identifying the fabric's weave structure as poplin or broadcloth, confirming it contains both cotton and man-made fibers, and verifying that it meets the criteria for being subject to man-made fiber restraints, in addition to the overarching requirement of containing less than 85% flax by weight and being unbleached or bleached.