5212.21.10.20 - Combed (410)

This HTS subcategory, 5212.21.10.20, specifically classifies other woven fabrics of cotton that weigh more than 200 g/m², are unbleached, and importantly, are combed. The "combed" attribute refers to a further processing step applied to the cotton fibers before weaving. This process removes shorter, coarser fibers, resulting in a smoother, stronger, and more uniform yarn, which in turn creates a fabric of higher quality and finer finish.

The primary distinction for this category lies in the combing of the cotton fibers. Its sibling, 5212.21.10.10, covers similar unbleached, heavy woven cotton fabrics but specifically identifies those where the cotton fibers were *not* combed. Therefore, the presence or absence of the combing process is the definitive characteristic to differentiate between these two sibling classifications.

As a leaf node, this category does not have further subcategories. Classification at this level is determined by the explicit criteria: woven cotton fabric, weighing over 200 g/m², unbleached, and comprising combed cotton fibers. Examples of such fabrics might include heavier weight twills or drills used for durable goods where a superior finish is desired.