6207.21.00.10 - Men's (351)

This HTS category, 6207.21.00.10, specifically classifies men's nightshirts and pajamas made of cotton, which feature distinct coloration. The key criterion for inclusion here is the presence of two or more colors woven into the fabric, either in the warp (lengthwise threads) or the filling (crosswise threads). This multi-colored textile characteristic is crucial for distinguishing these items from solid-colored cotton sleepwear.

Within its direct peer group, this code is distinguished from 6207.21.00.20, which covers the same types of garments (men's and boys' nightshirts and pajamas of cotton with two or more colors) but specifically for boys. The primary differentiator is the intended recipient: men versus boys. Since this is a leaf node within the HTS, there are no further subcategories. Therefore, classification hinges directly on the material (cotton), garment type (nightshirts and pajamas), and the multi-colored weave, along with the size designation (men's).