"It all began during a dinner between my two partners," Spartan CMO Thomas Calichiama told Thrillist. "They both put their phone on the table and talked about the fact that both of them heard about cell phone radiation and wanted to reduce their exposure. They then looked at a microwave and said that we have the technology to keep radiation inside a box. Why can't we do the same thing in a fabric to keep radiation outside?"
Spartan's underwear use a high-tech fabric featuring pure silver fibers, which acts as a Faraday cage, protecting your jewels from electromagnetic waves like a tinfoil hat for your down below. The undies underwent "in an independent lab at the French Waves Institute" and they found that the boxers block "over 99 [percent] of all cellphone and WiFi radiation," according to the company.