U.S. imports of Synthetic Monofilament (67 Decitex or Over) and Narrow Synthetic Textile Strip (SITC 65188) totaled $19.7M in August 2026, imported from 37 countries.
Importers of Synthetic Monofilament (67 Decitex or Over) and Narrow Synthetic Textile Strip paid $2.1M in duties in August 2026, an average duty rate of 10.60% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Synthetic Monofilament (67 Decitex or Over) and Narrow Synthetic Textile Strip imports of $19.7M in August 2026 ran 11% above the year-to-date monthly average of $17.7M.
Last updated: August 2026 dataSynthetic monofilament at or above 67 decitex with a cross-section no greater than 1 mm, along with synthetic textile strip or straw not exceeding 5 mm in width, serve highly specialized end uses ranging from fishing line and brush bristles to woven seating and agricultural shade cloth. The decitex floor and the 1 mm cross-section ceiling are both hard classification limits — product falling outside either dimension shifts to a different tariff heading. Depending on the polymer type (nylon, polyester, polypropylene) and country of origin, these products may carry antidumping or Section 301 exposure, making precise technical specifications essential for correct entry.
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584 import shipments a month
Monofilament is a single extruded filament with a round or near-round cross-section, classified here when it is 67 decitex or over and no more than 1 mm across. Synthetic textile strip (sometimes called 'straw') is a flat, tape-like extruded form no wider than 5 mm; both forms are covered by this heading but serve different downstream applications such as weaving versus fishing or brush manufacturing.
At the SITC level, polymer type (nylon, polyester, polypropylene, etc.) does not change the heading, but it becomes relevant at the HTS 10-digit level for duty-rate and trade-remedy purposes. Importers should verify whether the specific polymer is subject to antidumping orders or Section 301 measures before entry.
Basic heading 244 of 766 in section 6
Basic heading 65188 · $19.7M of $27.0B
Imports · August 2026
origin
Germany and Vietnam together supply 42% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$19.7MYoY · free account
Exports
$15.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $190.2M of Synthetic Monofilament (67 Decitex or Over) and Narrow Synthetic Textile Strip and exported $228.3M.
Through August 2026. Source: U.S. Census Bureau.
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