6403.51.30 - Welt footwear

This category, HTS 6403.51.30, specifically classifies welt footwear where the outer sole is constructed from rubber, plastics, leather, or composition leather, and the upper is made entirely of leather. Welt construction is a durable method of attaching the upper to the sole, often involving a strip of material (the welt) stitched to both the upper and the insole, and then to the outsole. This method is typically found in higher-quality footwear.

Distinguishing this category from its sibling, which also falls under "Other: Covering the ankle" within the broader "Other footwear with outer soles of leather" grouping, is the specific mention of "welt footwear." While the sibling might encompass other types of leather footwear that cover the ankle and have leather outer soles but are not constructed using the welt method, this code is reserved for those explicitly made using this particular construction technique.

Under this classification, there are further subdivisions based on gender and other categories. The subcategories "For men" and "For women" (6403.51.30.60) indicate distinctions based on design and sizing intended for male or female wearers. The "Other" subcategory (6403.51.30.71) would capture any remaining welt footwear fitting the primary criteria that does not fall into the men's or women's specific divisions.