6402.91.40.63 - For infants, as described in statistical note 2 to this chapter

This HTS classification, 6402.91.40.63, specifically designates footwear for infants. The primary defining characteristic for this subcategory, as per statistical note 2 to Chapter 64, is the intended wearer's age group. This ensures that very small children's footwear, often with particular design considerations for comfort, flexibility, and ease of use, are appropriately categorized.

This category is distinguished from its siblings by its focus on infant footwear. While other subcategories at this level might classify footwear based on gender (e.g., for men, for women), this node isolates items specifically designed and sized for babies and very young children. The "Other" sibling category would encompass footwear that doesn't fit into the specifically defined gendered or infant classifications at this level.

As this is a leaf node, there are no further subcategories. Therefore, the classification criteria are entirely dependent on the preceding notes and the explicit definition of infant footwear. Classification within this code requires adherence to the specific requirements outlined in statistical note 2, ensuring that the footwear is indeed intended for infants based on size, design, and intended use.