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

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 — China → United States

23.1%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)

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