5512.11.00 - Unbleached or bleached

This HTS category, 5512.11.00, specifically classifies woven fabrics made predominantly from synthetic staple fibers. The key defining characteristic is that these fabrics must contain 85 percent or more by weight of synthetic staple fibers. Furthermore, this particular subheading is reserved for fabrics that contain 85 percent or more by weight of *polyester* staple fibers. The description "Unbleached or bleached" indicates that the fabric's state of processing – whether it retains its natural color or has undergone bleaching – does not impact its classification at this level.

This classification differs from its sibling category, 5512.19.00, which covers "Other" woven fabrics of synthetic staple fibers. While both fall under the broader heading of woven fabrics of synthetic staple fibers containing 85 percent or more by weight of synthetic staple fibers, 5512.19.00 is for those fabrics where the principal synthetic staple fiber is *not* polyester, or where the fabric's composition does not meet the 85% polyester staple fiber threshold for this specific subheading.

Within this subheading, further detail is provided through its subcategories, which differentiate fabrics based on their weave construction and specific fabric types. These subcategories, such as poplin, printcloth, sheeting, duck, satin weave, twill weave, and Oxford cloth, allow for more precise classification based on the fabric's intended use and aesthetic or functional characteristics, which are critical for customs purposes.