6203.23.00.30 - Shirts (440)

This HTS classification, 6203.23.00.30, specifically covers "Shirts" for men or boys, which are part of ensembles or sets. These shirts must be of synthetic fibers and contain 36 percent or more by weight of wool or fine animal hair. The "ensemble" context is crucial here, indicating these shirts are designed to be worn as part of a coordinated outfit, typically with other garments from heading 6203.

To distinguish this category from its siblings, it's important to note the specific garment type. While 6203.23.00.10 covers other garments described in heading 6201, and 6203.23.00.15 pertains to jackets and blazers from heading 6203, and 6203.23.00.20 focuses on trousers, breeches, and shorts, this subheading uniquely identifies shirts. The category 6203.23.00.40, "Other," serves as a residual classification for items within the ensembles of synthetic fibers with a significant wool or fine animal hair content that do not fit the descriptions of shirts, jackets, blazers, trousers, breeches, or shorts.

As this is a leaf node, there are no further subcategories. Therefore, the classification hinges on accurately identifying the garment as a shirt within the specified material composition (synthetic fibers with 36% or more wool/fine animal hair) and its inclusion as part of an ensemble falling under heading 6203. Practical classification will rely on visual inspection of the garment and its accompanying pieces to confirm it forms a coordinated set and adherence to the fiber content requirements.