6403.99.40 - Welt footwear

This HTS classification, 6403.99.40, specifically addresses "Welt footwear" that falls under the broader category of footwear with outer soles of rubber, plastics, leather or composition leather, and uppers of leather. Welt construction is a method of attaching the upper of the shoe to the sole and shank through a sewn strip of material called a "welt." This technique is typically used in higher-quality, durable footwear.

Within the "Other footwear" and subsequent "Other" levels, this specific code distinguishes itself by its construction method. While other subcategories at this level might encompass various types of leather footwear not constructed with a welt, this designation focuses exclusively on those shoes where the welt method is employed.

The subcategories under this node, "Work footwear" and "Other," indicate further potential subdivisions. "Work footwear" would likely include welted shoes designed for specific occupational safety or performance requirements. The subsequent "Other" subcategory would then encompass all remaining welt footwear that does not meet the criteria for work footwear, ensuring comprehensive coverage within this niche of leather shoe construction.