Men's Long-Sleeve Merino Wool Thermal Underwear Shirt
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing 25% or more elastomeric yarn
Garments with significant spandex or elastomeric content for stretch are classified in heading 6110 for elastic undergarments.
If of cotton rather than wool
Material composition determines heading; cotton long-sleeve underwear shifts to 6109.10 subheading.
If sold as part of a suit or ensemble set
If presented as a coordinated set for retail sale with matching lower garments, it may classify under ensemble provisions in 6110.
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Import Tips & Compliance
• 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
Related Products under HTS 6109.90.15.10
Boys' Long-Sleeve Wool Base Layer Underwear Top
A long-sleeve knitted top made from fine wool, intended as a base layer underwear for boys during cold weather activities, providing insulation without bulk. Classified under HTS 6109.90.1510 as boys' underwear of wool with long sleeves, adhering to chapter restrictions on closure and excluding orthopedic or worn items. It matches the 'similar garments' description due to its tank-like fit adapted for thermal use.
Men's Lambswool Long-Sleeve Crewneck Underwear Shirt
Crafted from soft lambswool in a crewneck style with long sleeves, this men's underwear shirt offers breathability and odor resistance for daily wear under shirts. It qualifies for HTS 6109.90.1510 as a knitted wool garment for men, specifically underwear without prohibited bottom fastenings, fitting the T-shirt/singlet category by design and function.
Men's Shetland Wool Long-Sleeve V-Neck Base Layer
This V-neck long-sleeve shirt from durable Shetland wool serves as men's underwear base layer for outdoor pursuits, with a smooth knit for layering. Under HTS 6109.90.1510 due to its wool composition, long sleeves, men's design (left-over-right closure), and underwear purpose, excluding ensemble sets.
Boys' Alpaca-Wool Blend Long-Sleeve Underwear Henley
Featuring a buttoned Henley placket, this long-sleeve underwear top blends alpaca and wool for softness, tailored for boys as thermal undies. HTS 6109.90.1510 applies as boys' knitted wool long-sleeve underwear, with partial neck opening allowed for shirts per notes, not qualifying as blouse.