6107.19.90.00 - Other (852)

This HTS category, 6107.19.90.00, encompasses men's and boys' underpants and briefs that are knitted or crocheted and made from textile materials other than those specifically detailed in preceding subheadings. This classification is intended for items where the primary textile component does not meet the specific percentage requirements for silk or other enumerated materials in related subheadings. The "Other (852)" designation indicates it captures a residual group of undergarments made from various textile combinations not otherwise classified.

Distinguishing this category from its sibling, 6107.19.10.00, is crucial. The sibling specifically covers underpants and briefs containing 70 percent or more by weight of silk or silk waste. Therefore, 6107.19.90.00 applies to undergarments where silk content is less than 70%, or where the material is entirely comprised of other fibers such as cotton, synthetic, or regenerated cellulosic materials, provided these materials are not otherwise specified.

As this is a leaf node in the HTS classification, there are no further subcategories. Classification under 6107.19.90.00 is therefore dependent on accurately determining the material composition and ruling out specific classifications for silk-rich undergarments. Importers and exporters should carefully review the fiber content of their men's and boys' knitted or crocheted underpants and briefs to ensure correct classification within this residual category.