0505.10.00.65 - Down

This HTS classification, 0505.10.00.65, specifically designates "Down." Down refers to the soft, fluffy undercoating of birds, characterized by its fine, wispy structure and lack of a quill shaft. It is distinct from feathers, which are identified by the presence of a prominent quill or shaft.

The primary distinction between this category and its sibling, 0505.10.00.60 ("Feathers"), lies in the physical structure of the avian material. While feathers have a defined shaft, down is the amorphous layer of small, fine barbules that grow from the quill base. Both down and feathers within this chapter are understood to be "not further worked than cleaned, disinfected or treated for preservation."

As this is a terminal node within the HTS, there are no further subcategories. Therefore, the classification of goods under 0505.10.00.65 hinges on the definitive identification of the material as down, as opposed to feathers. Practical examples of goods classified here would include bulk down intended for use as filling in items such as pillows, comforters, and outerwear, provided it meets the physical characteristics of down and has undergone only basic preservation treatments.