Women's Merino Wool Blend Thermal Undershirt

This thermal undershirt is knitted from a blend of man-made fibers and merino wool, designed with a waffle texture for superior heat retention and moisture-wicking. It falls under HTS 6109.90.10.75 as a women's thermal undershirt made primarily of man-made fibers, excluding those with drawstrings or ribbed waistbands at the bottom. The close-fitting crewneck style provides layering under outerwear without bulk.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China32%+17.5%49.5%
🇲🇽Mexico32%+10.0%42%
🇨🇦Canada32%+10.0%42%
🇩🇪Germany32%+10.0%42%
🇯🇵Japan32%+10.0%42%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

6110.30.30Same rate: 49.5%

If containing 70% or more wool or fine animal hair

High wool content changes primary material classification to Chapter 61 heading for garments of man-made/textile blends with predominant wool.

6109.10.00Lower: 34% vs 49.5%

If primarily cotton or cotton blends

Cotton-dominant thermal undershirts classify under cotton-specific subheading in 6109.10, based on fiber content rules.

6114.30.10Lower: 45.7% vs 49.5%

If sold as part of a thermal underwear set with bottoms

When put up as a coordinated set for retail sale, it may qualify as an ensemble under 6114 for other garment sets.

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Import Tips & Compliance

Verify fiber content exceeds 50% man-made fibers via lab tests to confirm classification under 6109.90; natural fiber dominance shifts to 6109.10

Ensure no drawstring, ribbed waistband or tightening at bottom to avoid exclusion from heading 6109; document construction details

Label as 'thermal undershirt' with care instructions; common pitfall is misclassifying as outerwear if sold standalone

Related Products under HTS 6109.90.10.75

Girls' Synthetic Waffle-Knit Thermal Undershirt

Thermal undershirt for girls featuring waffle-knit construction from 100% man-made acrylic fibers for warmth and breathability. It qualifies under HTS 6109.90.10.75 as a girls' thermal undershirt of man-made fibers, sleeved, without bottom tightening features per heading notes. Designed for active layering in winter sports.

Women's Mock Neck Spandex-Blend Thermal Top

Mock neck thermal top blending man-made spandex and polyester for stretch and insulation, knitted construction. HTS 6109.90.10.75 applies as women's thermal undershirt without bottom ribbing or drawstrings. Perfect for yoga base layering.

Ladies' Polar Fleece-Lined Thermal Tank Top

A sleeveless thermal tank top for women, constructed from knitted man-made polyester with inner fleece lining for insulation. Classified in HTS 6109.90.10.75 as it meets thermal undershirt criteria: man-made fibers, women's/girls', no prohibited bottom features. Ideal for cold-weather base layering.

Women's High-Neck Nylon Thermal Base Layer Shirt

High-neck thermal undershirt made of knitted nylon man-made fibers, offering moisture management and odor resistance. Falls under HTS 6109.90.10.75 for women's thermal undershirts of man-made fibers, adhering to no-drawstring/ribbed bottom rules. Used as base layer for hiking and skiing.

Girls' Long-Sleeve Polyester Thermal Crewneck

Long-sleeve crewneck thermal undershirt for girls, knitted from recycled polyester man-made fibers with brushed interior. Classified HTS 6109.90.10.75 as women's/girls' thermal undershirt of man-made fibers, compliant with pocket/waistband exclusions from related headings. Provides essential warmth for school uniforms.