5210.49.10.00 - 3-thread or 4-thread twill, including cross twill (218)

This HTS category, 5210.49.10.00, specifically classifies woven fabrics of cotton that contain less than 85 percent by weight of cotton, mixed mainly or solely with man-made fibers, and weigh no more than 200 g/m². The defining characteristic of this subcategory is its weave structure: a 3-thread or 4-thread twill, which also encompasses cross twill weaves. This distinct weave pattern results in diagonal lines on the fabric's surface, typically with a more pronounced or denser appearance compared to simpler twill constructions.

This classification is distinguished from its sibling category, 5210.49.20.00, which covers other weaves within the same material and weight parameters, such as satin weaves or twill weaves that are *not* specifically 3-thread or 4-thread twill or cross twill. Therefore, the precise thread count and twill pattern are critical for accurately assigning goods to this specific 10.00 subcategory versus other weave types.

As this is a leaf node within the HTS, there are no further subcategories. Classification decisions at this level hinge entirely on meeting the criteria for cotton content, man-made fiber admixture, weight limit, and the specific 3-thread or 4-thread twill or cross twill weave structure. Examples of goods that would fall here include certain types of lightweight denim, chinos, or gabardine fabrics specifically constructed with the outlined twill weave, provided they meet all the preceding material and weight stipulations.