Silk Thermal Underwear Briefs from Canada
Insulated knitted silk briefs (77% silk) for cold-weather base layer support. HTS 6107.99.50 men's underpants with high silk. Retains warmth without bulk.
Duty Rate — Canada → United States
10.8%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Classify as retail vs industrial to avoid end-use shifts
• Document non-orthopedic design per exclusions