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%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Classify as retail vs industrial to avoid end-use shifts
• Document non-orthopedic design per exclusions