... workmanship 4.ODM&OEM service Bamboo Charcoal Men's Boxers,boxers for men,men boxers and underwear1.Material:50% bamboo charcoal,30% arcylic,20% hollow2 ... ,it takes 45-50 days for around 5,000 pairs) As we used to know,bamboo charcoal has a good function of ... antibacterial and eliminates odor.Actually,beside it,bamboo charcoal also has far infrared function.With far infrared emissivity ...