6103.43.20.15 - Insulated, for cold weather protection (659)

This HTS classification pertains to bib and brace overalls specifically designed for men or boys, knitted or crocheted, and constructed from synthetic fibers. The key defining characteristic for this category is their insulation, making them suitable for cold weather protection, as indicated by the (659) designation. These garments are intended for activities or environments requiring enhanced warmth, differentiating them from standard bib and brace overalls.

As a leaf node within the HTS structure, this category does not have further subcategories. Therefore, classification at this level relies heavily on confirming the garment's construction from synthetic fibers, its bib and brace overall style, and its specific functional purpose of providing insulation for cold weather. The absence of further subdivisions means that once these criteria are met, the item is definitively classified under this code.