5515.13 - Mixed mainly or solely with wool or fine animal hair:

This category, HTS Code 5515.13, encompasses woven fabrics manufactured primarily from polyester staple fibers that are mixed mainly or solely with wool or fine animal hair. The defining characteristic is the blend, where polyester staple fibers constitute a significant portion of the fabric, alongside wool or fine animal hair, distinguishing it from fabrics made entirely of synthetic staple fibers or predominantly of other materials.

When classifying woven fabrics under HTS 5515.13, it is crucial to differentiate them from their siblings. Unlike 5515.11, which covers blends with viscose rayon staple fibers, or 5515.12, which includes mixtures with man-made filaments, 5515.13 specifically addresses those incorporating wool or fine animal hair. The residual category, 5515.19, applies to polyester staple fiber woven fabrics that do not fit into the more specific mixture descriptions.

To further refine classification within this category, two subcategories exist. The first, 5515.13.05, applies to fabrics containing 36 percent or more by weight of wool or fine animal hair, signifying a substantial presence of these natural fibers. The second, 5515.13.10, covers all other woven fabrics within this grouping that do not meet the 36 percent threshold for wool or fine animal hair, providing a catch-all for remaining eligible blends.