5515.22 - Mixed mainly or solely with wool or fine animal hair:

This HTS classification covers woven fabrics that are primarily or exclusively composed of synthetic staple fibers, with a significant or sole admixture of wool or fine animal hair. These fabrics are distinct from those exclusively made of synthetic staple fibers or those where the primary admixture is with man-made filaments. The defining characteristic is the presence of wool or fine animal hair, which imparts specific qualities to the textile.

Within this category, further distinctions are made based on the precise percentage of wool or fine animal hair present. Subcategory 5515.22.05 specifically addresses fabrics containing 36 percent or more by weight of wool or fine animal hair, highlighting a substantial integration of these animal fibers. This granular subdivision allows for precise classification based on the material composition, influencing factors such as warmth, texture, and drape.