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HSChapter 60
U.S. imports of warp knit fabrics of synthetic fibers, dyed (HS 600537) totaled $3.8M in April 2026, traded with 39 countries.
Importers of Warp Knit Fabrics of Synthetic Fibers, Dyed paid $878K in duties in April 2026 — an effective duty rate of 25% on $3.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Warp Knit Fabrics of Synthetic Fibers, Dyed imports of $3.8M in April 2026 ran 13% below the year-to-date monthly average of $4.3M.
Last updated: April 2026 dataPiece-dyed synthetic warp-knit fabrics are a workhorse input for activewear, swimwear, lingerie, and automotive interior textiles, and South Korea and China together account for the bulk of US imports under this heading. The US schedule subdivides by construction: open-work (6005370010), stitch-bonded (6005370020), a general line (6005370000), and a residual NESOI line (6005370080). Vietnam and Mexico are also notable suppliers, and goods from Mexico may benefit from USMCA preferential treatment where rules of origin are satisfied.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Open-work fabrics have clearly visible holes or gaps in the structure that are an intentional part of the design — mesh, net, or lace-like constructions. A fabric with a solid, closed knit structure, even if lightweight, would not qualify as open-work. Physical examination of the fabric, supported by a mill specification sheet describing the construction, is the standard approach; CBP may request samples or technical documentation during review.
Imports of synthetic warp-knit fabrics from China are subject to Section 301 tariffs in addition to the normal column 1 duty rate. The applicable list and rate depend on the specific 10-digit HTS classification and any subsequent modifications or exclusions. Importers should verify current Section 301 status for the relevant tariff line with CBP or a licensed customs broker before finalizing landed-cost calculations, as rates and exclusion lists are subject to change.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $62K | $8.7M | +$8.7M |
| KOREA, SOUTH | $1.6M | $20K | -$1.6M |
| CHINA | $1.1M | $23K | -$1.1M |
| CANADA | $237K | $543K | +$306K |
| GUATEMALA | -- | $580K | +$580K |
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 |
|---|---|---|---|---|
| 6005370080 | OTHER DYED, SYNTHETIC, WARP KNIT FABRICS, NESOI | $3.1M | 26.29% | $743K |
| 6005370010 | OPN-WRK FABS, DYED, SYNTH WRP KNT, EXCL 6001-6004 | $653K | 18.28% | $118K |
| 6005370020 | STITCH-BONDED GOODS, DYED, SYNTH FIBERS, WARP KNIT | $39K | 44.60% | $17K |
OTHER DYED, SYNTHETIC, WARP KNIT FABRICS, NESOI
OPN-WRK FABS, DYED, SYNTH WRP KNT, EXCL 6001-6004
STITCH-BONDED GOODS, DYED, SYNTH FIBERS, WARP KNIT
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6005370000 | WARP KNIT FAB(INCL GALLOON)OF DYED SYNTHTIC FIBERS | $10.8M |
WARP KNIT FAB(INCL GALLOON)OF DYED SYNTHTIC FIBERS
930.8K 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
KNIT/CROCT FABS, COTTON, UNBLEACHED/BLEACHED, NESO
HS 600621
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $837K | $2.8M | +$2.0M |
| Michigan | $171K | $1.9M | +$1.8M |
| North Carolina | $170K | $1.7M | +$1.5M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $47K | $5.8M | +$5.7M |
| YSLETA, TX | -- | $1.5M | +$1.5M |
| LOS ANGELES, CA | $1.0M | $55K | -$952K |