Silk Long John Underpants from Japan
Thermal long john underpants crafted from 72% silk blend, fully knitted for warmth and comfort in cold weather. Falls under HTS 6107.99.50 as men's underpants with over 70% silk content. Silk's thermoregulating properties make it superior for base layers.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Document knitting gauges and silk waste ratios in technical specs to support classification claims
• Use HTS-specific labeling for 'men's silk underpants' to prevent gender misclassification under closure rules
• Watch for reclassification if elastic content exceeds norms, potentially shifting to other textile subheadings