Product classification
HS code for Men's swim trunks: 6112.31
Swimwear, men's or boys', of synthetic fibres, knitted or crocheted.
Classification of men's swim trunks under HS 6112.31
HS code 6112.31 is specifically designated for men's or boys' swimwear that is manufactured using synthetic fibers and constructed through a knitting or crocheting process. The classification is governed by the physical properties of the garment and its intended use as swimwear. Synthetic fibers, such as polyester or elastane blends, are common in this category due to their quick-drying and stretchable nature. Under the Harmonized System, Chapter 61 covers articles of apparel and clothing accessories that are knitted or crocheted. For a product to be classified here, it must clearly be identifiable as swimwear by its cut, lining, or lack of a fly that would otherwise categorize it as standard shorts. The use of synthetic materials is a primary requirement for this specific subheading, distinguishing it from swimwear made of other textile materials like cotton or silk. The knitted construction provides the necessary elasticity for performance swimwear used in competitive or recreational swimming.
- Covers
- Knitted polyester swim trunks
- Nylon swim briefs
- Lycra or spandex racing suits
- Knitted synthetic swim shorts with inner liners
- Also under 6112.31
- Speedo Endurance+ Jammers
- Arena Powerskin Carbon-Glide
- Nike Swim Volley Shorts
- Adidas Infinitex Swim Briefs
- Hurley Phantom Boardshorts
Codes often confused with 6112.31
Common mistake. The most common misclassification occurs with HS code 6211.11, which is for woven swimwear. If the trunks are made of a woven fabric (like many board shorts), they cannot be classified under 6112.31. Additionally, if the swimwear is made of natural fibers or non-synthetic blends, it may fall under 6112.39.
Top exporters and importers of HS 611231 (the code used for men's swim trunks), 2025
In 2025, the largest exporter of HS 611231 (the code used for men's swim trunks) in UN Comtrade data was China, with 35% of world exports; the largest importer in UN Comtrade data was France, with 14% 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 611231, not only men's swim trunks.
Top exporters 2025 · share of world exports
- 1 China $138M 35% of world exports
- 2 Vietnam* ~$35M 9.1% of world exports · partner records ↗
- 3 Tunisia* ~$25M 6.5% of world exports · partner records ↗
World total: $391M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 France $45M 14% of world imports
- 2 Germany $28M 8.7% of world imports
- 3 Italy $22M 6.8% of world imports
World total: $327M 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 swim trunks
Brazil classifies men's swim trunks under NCM 6112.31.00: HS 6112.31 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 swim trunks
What is the HS code for Men's swim trunks?
The HS code for Men's swim trunks is 611231 (Swimwear; men's or boys', of synthetic fibres, knitted or crocheted).
How do I classify Men's swim trunks for customs?
Men's swim trunks is classified under HS code 611231 — Swimwear; men's or boys', of synthetic fibres, knitted or crocheted. This is a 6-digit subheading level code.
What is the HS code for knitted synthetic swim trunks?
The correct HS code for men's knitted synthetic swim trunks is 6112.31.
Can these be classified as regular shorts?
No, if the garment has a mesh liner and is made of water-resistant synthetic knit fabric, it must be classified as swimwear under 6112.31 rather than general shorts under 6103.43.
Which countries are the top exporters of men's swim trunks (HS 611231)?
In 2025, the top exporters of HS 611231 (the code used for men's swim trunks) in UN Comtrade data were China ($138M, 35% of world exports), Vietnam (about $35M) and Tunisia (about $25M). World exports came to about $391M, 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 swim trunks (HS 611231)?
In 2025, the top importers of HS 611231 (the code used for men's swim trunks) in UN Comtrade data were France ($45M, 14% of world imports), Germany ($28M) and Italy ($22M). World imports came to about $327M, 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 swim trunks the same in all countries?
The base HS code 611231 for Men's swim trunks 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 swim trunks in Brazil?
In Brazil, men's swim trunks (HS 611231) is classified under NCM 6112.31.00.