6109.90.15.10/Men's Long-Sleeve Merino Wool Thermal Underwear Shirt/Mexico

Men's Long-Sleeve Merino Wool Thermal Underwear Shirt from Mexico

This is a long-sleeve knitted shirt made primarily from merino wool, designed specifically as underwear for men to provide warmth and moisture-wicking properties under outer clothing. It falls under HTS 6109.90.1510 because it is a men's or boys' knitted garment of wool with long sleeves, classified as underwear, excluding those with drawstrings or ribbed waistbands per chapter notes. The fine knit structure ensures it meets the criteria for T-shirts, singlets, or similar garments in this subheading.

Duty Rate — Mexico → United States

15.6%

Rate breakdown

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Verify wool content exceeds 50% via lab testing for accurate classification under wool subheading; blends may shift to synthetic codes

• Ensure no drawstring, ribbed waistband, or tightening at bottom, as per heading 6109 note, or it reclassifies elsewhere

• Label as 'underwear' clearly and provide fiber content disclosure to comply with FTC and CBP textile regulations