Monarch, the Chilean company developed the technology and is now producing underwear & socks for both men & women, introduced the technology in Chile this Monday. It's like this: copper is merged with polyamide and the result is a type of oil that's then turned into a wire. Machines take these wires and weave them inside the undie fabric so that the processed metal stays in contact with the user's skin. This, as you can imagine, provides the user with day-long germ-killing delicates.
Yes, you can wash the garments and they're just as durable as anything made out of similar fabric. The copper-infused pieces of clothing are actually odor-resistant and they can look just like any panty or boxer.
Source: LUN Chile
