Long pile fabrics (600110) are characterized by a pile height that is noticeably greater than standard cut or looped pile—typically used for faux fur or plush applications. Standard cut pile and looped pile (terry) fabrics are classified by fiber content under the 6001 21/22/29 or 6001 91/92/99 subheadings. If the pile length is the defining commercial characteristic, 600110 applies regardless of fiber.

Construction method is determinative: terry fabrics produced by knitting or crocheting fall under 6001, while woven terry fabrics (such as those used in conventional bath towels) are classified in the woven fabric chapters. The looped pile subheadings (600121, 600122, 600129) specifically capture knitted terry-type constructions by fiber content.