6211.33.50.03 - Containing 15 percent or more by weight of down and waterfowl plumage and of which down comprises 35 percent or more by weight; containing 10 percent or more by weight of down

This HTS classification covers men's or boys' recreational performance outerwear, specifically coveralls, jumpsuits, and similar apparel, that are made of man-made fibers. The defining characteristic of this category is its insulation properties, as the garments must contain 15 percent or more by weight of down and waterfowl plumage, with down constituting at least 35 percent of that mixture. Furthermore, a minimum of 10 percent by weight of down is required for classification under this code. This emphasizes the high level of thermal insulation critical for performance in cold weather.

Distinguishing this category from its sibling, 6211.33.50.07, is crucial. While both fall under "Recreational performance outerwear" for men's or boys' and are made of man-made fibers, the sibling specifically addresses garments "Other, insulated for cold weather protection." This implies a broader range of insulation methods or materials beyond down and plumage. Therefore, garments classified here must meet the stringent down and plumage content requirements, differentiating them from other insulated items that might use synthetic fills or other insulating techniques.

As this is a leaf node in the HTS classification system, there are no further subcategories. Classification at this level is definitive, relying on the specific material composition and intended use as recreational performance outerwear, particularly coveralls, jumpsuits, and similar garments designed for cold weather activities, as defined by the precise down and waterfowl plumage content criteria.