6403.91.30 - Welt footwear

This HTS category, 6403.91.30, specifically classifies welt footwear that covers the ankle. Welt construction is a method of shoe assembly where the upper is stitched to a strip of leather or other material (the welt), which is then attached to the sole. This technique is often used in durable, high-quality footwear. The defining characteristic for inclusion here is that the footwear must extend above the ankle bone.

Within the broader classification of "Other footwear" under heading 6403, this subcategory is distinguished by the specific "welt" construction method and the requirement to cover the ankle. It differentiates itself from footwear that does not utilize welt construction or from footwear that does not extend above the ankle. It is important to note that the outer sole must be made of rubber, plastics, leather, or composition leather, and the upper must be constructed from leather, as per the parent category.

The subcategories within 6403.91.30 further refine the classification. The "Work footwear" subcategory is for items designed and intended for use in industrial or hazardous work environments, often featuring protective elements. The "Other" subcategory encompasses all other types of welt footwear that cover the ankle and do not meet the specific criteria for work footwear, such as dress boots or casual boots made with welt construction.