Explanatory notes
… 5402.39 ‑ ‑ Other ‑ Other yarn, single, untwisted or with a twist not exceeding 50 turns per metre : … by a mechanical or physical process (e.g., twisting, untwisting, false‑twisting, compression, ruffling, … in the manufacture of stretch garments (e.g., tights, hose, underwear) while the high bulk yarns give fabrics softness …