Product classification
HS code for Men's synthetic knit trousers: 6103.43
Trousers, bib and brace overalls, breeches and shorts, men's or boys', of synthetic fibres, knitted or crocheted.
Classification of men's synthetic knit trousers under HS 6103.43
Men's synthetic knit trousers are classified under HS code 6103.43 based on the General Rules of Interpretation (GRI) and the specific structure of Section XI of the Harmonized System. Chapter 61 specifically covers articles of apparel and clothing accessories that are knitted or crocheted. Within this chapter, heading 6103 is reserved for men's or boys' suits, ensembles, jackets, blazers, trousers, bib and brace overalls, breeches, and shorts. The classification process requires identifying the primary material and the method of construction. Since these garments are made of synthetic fibers—such as polyester, nylon, or elastane—and are produced through knitting rather than weaving, they fall into subheading 6103.43. This classification is determined by the garment's outward characteristics, including the stitch density and the presence of a left-over-right closure, which traditionally identifies the garment as being for men or boys according to Note 9 to Chapter 61.
- Covers
- Men's knitted polyester jogging pants
- Men's synthetic fiber sweatpants
- Knitted athletic trousers for men made of nylon blends
- Men's knitted bib and brace overalls of synthetic materials
- Knitted synthetic shorts for men
- Men's crocheted trousers of man-made fibers
- Also under 6103.43
- Under Armour Men's HeatGear Leggings
- Adidas Tiro 23 Training Pants
- Nike Dri-FIT Shorts
- Lululemon ABC Joggers
- Puma Boys' Polyester Track Pants
Codes often confused with 6103.43
Common mistake. A frequent point of confusion involves HS code 6203.43. While the subheading suffix is the same, Chapter 62 is strictly for garments that are not knitted or crocheted (woven). If the trousers are woven, they must be moved to 6203.43. Another common error is misclassifying these under 6104.63, which is the equivalent code for women's or girls' trousers; the distinction is usually based on the cut and the direction of the fastening. Additionally, specialized athletic gear like tracksuits may be diverted to 6112.12, but only if they meet the specific definition of a tracksuit set as defined in the Explanatory Notes.
Top exporters and importers of HS 610343 (the code used for men's synthetic knit trousers), 2025
In 2025, the largest exporter of HS 610343 (the code used for men's synthetic knit trousers) in UN Comtrade data was China, with 35% of world exports; the largest importer in UN Comtrade data was the United States, with 28% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 610343, not only men's synthetic knit trousers.
Top exporters 2025 · share of world exports
- 1 China $1.9B 35% of world exports
- 2 Vietnam* ~$709M 13% of world exports · partner records ↗
- 3 Cambodia* ~$379M 6.9% of world exports · partner records ↗
World total: $5.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $1.3B 28% of world imports
- 2 Japan $482M 10% of world imports
- 3 Germany $199M 4.2% of world imports
World total: $4.8B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for men's synthetic knit trousers
Brazil classifies men's synthetic knit trousers under NCM 6103.43.00: HS 6103.43 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about men's synthetic knit trousers
What is the HS code for Men's synthetic knit trousers?
The HS code for Men's synthetic knit trousers is 610343 (Trousers, bib and brace overalls, breeches and shorts; men's or boys', of synthetic fibres, knitted or crocheted). The primary HS code for men's or boys' trousers made of synthetic fibers that are knitted or crocheted is 6103.43.
How do I classify Men's synthetic knit trousers for customs?
Men's synthetic knit trousers is classified under HS code 610343 — Trousers, bib and brace overalls, breeches and shorts; men's or boys', of synthetic fibres, knitted or crocheted. This is a 6-digit subheading level code.
How do I distinguish between synthetic and artificial fibers for classification?
Synthetic fibers (like polyester) are polymers produced by chemical synthesis, whereas artificial fibers (like rayon or acetate) are derived from natural polymers like cellulose. Artificial fiber knit trousers would fall under 6103.49.
Which countries are the top exporters of men's synthetic knit trousers (HS 610343)?
In 2025, the top exporters of HS 610343 (the code used for men's synthetic knit trousers) in UN Comtrade data were China ($1.9B, 35% of world exports), Vietnam (about $709M) and Cambodia (about $379M). World exports came to about $5.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of men's synthetic knit trousers (HS 610343)?
In 2025, the top importers of HS 610343 (the code used for men's synthetic knit trousers) in UN Comtrade data were the United States ($1.3B, 28% of world imports), Japan ($482M) and Germany ($199M). World imports came to about $4.8B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Men's synthetic knit trousers the same in all countries?
The base HS code 610343 for Men's synthetic knit trousers is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for men's synthetic knit trousers in Brazil?
In Brazil, men's synthetic knit trousers (HS 610343) is classified under NCM 6103.43.00.