5402.44.00 - Elastomeric

HTS code 5402.44.00 encompasses "Elastomeric" synthetic filament yarn, not intended for retail sale. This category specifically covers yarns that possess inherent stretch or elastic properties, distinguishing them from non-elastic synthetic filaments. The key defining characteristic here is the material composition and manufacturing process designed to impart elasticity, allowing the yarn to recover its original shape after being stretched.

This classification differentiates itself from its siblings by focusing solely on the elastomeric nature of the yarn. For instance, it is distinct from sibling categories like 5402.45 (other, of nylon or other polyamides) or 5402.47 (other, of polyesters) where the primary distinguishing factor might be the specific polymer used, not necessarily the yarn's elastic properties. While those siblings may contain some elastomeric yarns made of those materials, 5402.44.00 is the dedicated heading for yarns where elasticity is the paramount characteristic, regardless of the specific polymer unless further specified at a deeper level.

The subcategories within 5402.44.00 further refine the classification based on the yarn's physical structure and twist. Subcategory 5402.44.00.05 specifies "Monofilament; multifilament, untwisted or with twist of less than 5 turns per meter," indicating yarns where the structural integrity and elastic properties are maintained with minimal or no added twist. Conversely, 5402.44.00.40, "Other," would encompass elastomeric yarns that do not meet the specific criteria of the preceding subcategory, potentially including those with a higher twist or other structural variations that still qualify them as elastomeric under the parent heading.