6403.99.20.90 - Other

This category, HTS Code 6403.99.20.90, encompasses footwear with outer soles of rubber, plastics, leather, or composition leather, and uppers of leather, that do not fall under specific gender-based designations. It specifically addresses "other" footwear within this broad description, meaning it captures items not explicitly categorized as for men or women. The key defining characteristic here is the exclusion from more narrowly defined sibling categories based on the intended wearer.

In contrast to its sibling categories, 6403.99.20.30 (For men) and 6403.99.20.60 (For women), this sub-category does not assign the footwear based on a gender designation. Classification under 6403.99.20.90 hinges on the absence of specific gender-related features or marketing, or if the design is intended to be unisex, or if the gender classification is ambiguous. The defining criteria for inclusion are the material composition of the outer sole and upper, and the exclusion from more specific sibling classifications.

As this is a leaf node, there are no further subdivisions. Therefore, the focus for classification within 6403.99.20.90 is on the precise material composition of the outer sole and upper, along with the careful determination that the footwear does not fit into the more specific "for men" or "for women" categories. This ensures accurate customs declaration and duty assessment for a wide array of leather footwear not otherwise specified.