6104.63.10.10 - Insulated, for cold weather protection (659)

This HTS category specifically classifies knitted or crocheted bib and brace overalls made from synthetic fibers. These garments are characterized by their suspender-style straps that attach to a bib portion, covering the chest, and are designed to be worn as a primary garment or protective wear. The inclusion of "bib and brace overalls" signifies a distinct design element that differentiates them from other types of trousers or shorts.

Unlike other trousers or shorts within the broader category of synthetic fiber apparel, these items feature the characteristic bib and brace construction. This design is often associated with workwear or protective clothing due to its ability to provide coverage and support. It is important to distinguish these from simple trousers or shorts, even if made of synthetic fibers, by the presence of the bib and attached suspenders.

As this is a leaf node within the HTS, there are no further subdivisions under 6104.63.10.10. Therefore, classification at this level relies on definitively identifying the garment as a knitted or crocheted bib and brace overall constructed from synthetic fibers. The descriptor "Insulated, for cold weather protection (659)" further refines the classification, indicating that these specific bib and brace overalls are designed with insulation for enhanced thermal properties, making them suitable for cold weather conditions.