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HSChapter 61
U.S. imports of men's & boys' knitted underpants & briefs of other textile materials (HS 610719) totaled $1.0M in April 2026, traded with 38 countries.
Importers of Men's & Boys' Knitted Underpants & Briefs of Other Textile Materials paid $100K in duties in April 2026 — an effective duty rate of 15% on $666K in dutiable value, based on actual customs collections rather than the published tariff schedule. Men's & Boys' Knitted Underpants & Briefs of Other Textile Materials imports of $1.0M in April 2026 ran 37% above the year-to-date monthly average of $756K.
Last updated: April 2026 dataSilk and specialty natural fibers define the niche commercial segment covered by this residual heading, which captures knitted men's and boys' underpants and briefs not made of cotton or manmade fibers. Vietnam and China lead US imports, with Peru also a notable source — reflecting Peru's established fine-knit alpaca and pima cotton-adjacent textile sector, though alpaca (a fine animal hair) would fall here rather than under the cotton heading. The US schedule distinguishes briefs containing 70% or more silk (6107191000) from all other textile material briefs (6107199000), making silk content verification the primary classification step for luxury underwear in this heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Alpaca is a fine animal hair, not cotton or a manmade fiber, so knitted men's or boys' briefs made of alpaca would fall under heading 610719 as 'other textile materials.' They would be classified under 6107199000 unless the article also contains 70% or more silk by weight, which is commercially unlikely for alpaca-dominant goods.
Importers should obtain a fiber content analysis from an accredited textile testing laboratory confirming that the article contains 70% or more silk by weight. This lab report, along with the commercial invoice and product specification sheet, should be retained in the entry records. CBP may request this documentation during a CF-28 inquiry or audit.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| VIETNAM | $518K | -- | -$518K |
| BANGLADESH | $168K | -- | -$168K |
| SRI LANKA | $162K | -- | -$162K |
| CHINA | $103K | -- | -$103K |
| GREECE | $25K | -- | -$25K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 6107199000 | M/B UNDERPANTS OF OTHER TEXTILE MATERIAL, KNIT | $875K | 16.43% | $83K |
| 6107191000 | M/B UNDERPANTS OT TEX MAT CONT 70% MORE SILK, KNIT | $162K | 10.90% | $18K |
M/B UNDERPANTS OF OTHER TEXTILE MATERIAL, KNIT
M/B UNDERPANTS OT TEX MAT CONT 70% MORE SILK, KNIT
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6107190000 | MEN'S/BOYS' UNDERPANT,& BRIEFS OT TEXTILE MTRL, KT | $28K |
MEN'S/BOYS' UNDERPANT,& BRIEFS OT TEXTILE MTRL, KT
557 doz
SWEATERS, PULLOVERS ETC, KNIT ETC, COTTON
HS 611020
T-SHIRTS, SINGLETS, TANK TOPS ETC, KNIT ETC COTTON
HS 610910
SWEATERS, PULLOVERS ETC, KNIT ETC, MANMADE FIBERS
HS 611030
T-SHIRTS, SINGLETS ETC, KNIT ETC, TEXTILES NESOI
HS 610990
W/G TROUSER OVERALL BREECHES SHORTS SYN FIB, KNIT
HS 610463
MEN'S OR BOYS' SHIRTS OF MANMADE FIBERS, KNITTED O
HS 610520
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $424K | $5K | -$419K |
| Washington | $176K | -- | -$176K |
| New Jersey | $161K | -- | -$161K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LONG BEACH, CA | $212K | -- | -$212K |
| NEWARK, NJ | $179K | -- | -$179K |
| TACOMA, WA | $165K | -- | -$165K |