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HSChapter 60
U.S. imports of knitted or crocheted fabrics of synthetic fibers, unbleached or bleached (HS 600631) totaled $2.5M in May 2026, traded with 32 countries.
Importers of Knitted or Crocheted Fabrics of Synthetic Fibers, Unbleached or Bleached paid $470K in duties in May 2026 — an effective duty rate of 27% on $1.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: May 2026 dataUnbleached and bleached knitted or crocheted fabrics composed of synthetic fibers — primarily nylon and polyester — are widely traded inputs for apparel, activewear, and technical textile manufacturing. The US schedule breaks this heading into five 10-digit lines (6006310000 through 6006310080), distinguishing double-knit/interlock constructions in nylon (6006310020) and polyester (6006310040) from other knit configurations. China is the dominant supplier, with Canada and India also contributing meaningfully to US import volumes. Importers should note that synthetic knit fabrics from China may be subject to Section 301 tariffs, making origin documentation and tariff engineering particularly important for sourcing decisions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The schedule separates nylon double-knit/interlock constructions (6006310020) from polyester double-knit (6006310040) and other synthetic double-knit fabrics (6006310060), with a catch-all line (6006310080) for other unbleached/bleached synthetic knit constructions. Correct classification depends on fiber content and knit structure, so importers should verify both when preparing entry documentation.
Yes. Knitted synthetic fabrics originating in China are generally subject to Section 301 tariffs. Importers sourcing from China should confirm the applicable list and rate with a licensed customs broker, as the measures have been subject to ongoing review and modification.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 6006310040 | POLYESTER, DBL KNIT, UNBLCH/BLCH SYNTH FIBERS, KNT | $1.5M | 27.74% | $344K |
| 6006310080 | OTHER UNBLCHD/BLCHD SYNTH FIBERS, KNIT, NESOI | $524K | 31.48% | $78K |
| 6006310060 | OTHER UNBLCHD/BLCHD SYNTH FIBS, DBL KNIT, NESOI | $313K | 20.34% | $24K |
| 6006310020 | NYLON, BLCHD/UNBLCHD, DBL KNT/INTRLCK CONST KNIT | $84K | 36.48% | $28K |
POLYESTER, DBL KNIT, UNBLCH/BLCH SYNTH FIBERS, KNT
OTHER UNBLCHD/BLCHD SYNTH FIBERS, KNIT, NESOI
OTHER UNBLCHD/BLCHD SYNTH FIBS, DBL KNIT, NESOI
NYLON, BLCHD/UNBLCHD, DBL KNT/INTRLCK CONST KNIT
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6006310000 | OTH KNIT/CROCHET FAB OF UNBLCH/BLCH SYNTHTIC FIBER | $5.3M |
OTH KNIT/CROCHET FAB OF UNBLCH/BLCH SYNTHTIC FIBER
534.8K kg
OTHER WARP KNIT FABRICS (INCLUDING GALLOON), NESOI
HS 600590
WARP KT FAB, SYNT FIB,OTHER, UNBLC/BLEACHED
HS 600536
KNIT/CROC FAB,WD>30 CM, CONT 5%OR MORE ELASTO YARN
HS 600410
KNIT/CROC FABS,SYNT FBRS, YARN OF DIF. COLORS, NES
HS 600633
KNITTED OR CORCHETED FABRICS,SYNTH FBRS, DYED, NES
HS 600632
WARP KNIT FAB,SYNT FIBERS, OTHER, DYED
HS 600537
| State | Imports | Exports | Balance |
|---|---|---|---|
| North Carolina | $253K | $4.0M | +$3.8M |
| Texas | $618K | $89K | -$529K |
| California | $265K | $232K | -$33K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| PORT EVERGLADES, FL | -- | $2.2M | +$2.2M |
| MIAMI, FL | -- | $1.2M | +$1.2M |
| HOUSTON, TX | $476K | -- | -$476K |