5512.11.00.50 - Duck (219)

This HTS category, 5512.11.00.50, specifically classifies woven fabrics predominantly composed of synthetic staple fibers, where polyester staple fibers constitute 85% or more of the total weight. Within the broader group of unbleached or bleached woven fabrics meeting these fiber content requirements, this particular subheading focuses on fabrics with a plain weave construction. The "Duck" designation signifies a heavier, closely woven fabric, often characterized by its durability and strength, which arises from the tight weave and generally higher thread count in warp and weft.

This category is distinguished from its siblings by its specific weave structure. While other subheadings at this level might cover poplin, broadcloth, printcloth, cheesecloth, lawns, voiles, batistes, or satin and twill weaves, this classification is reserved for the "duck" weave. The key differentiator lies in the fabric's construction, which results in a distinct density and feel compared to the finer weaves of voiles or the diagonal rib of twills.

As a leaf node within the HTS structure, there are no further subcategories branching from 5512.11.00.50. Classification into this subheading relies on confirming the fiber content (85% or more polyester staple fiber), the fabric's state (unbleached or bleached), and the presence of the characteristic "duck" plain weave. Importers and exporters should ensure their documentation accurately reflects these physical attributes to ensure correct customs declaration.