Nate was identified with tinnitus and now is one of more than 200,000 claimants suing 3M over its Combat Arms earplugs. To protect his hearing, Frei wore standard issue earplugs made by 3M . Plaintiffs claim 3M earplugs were "defective" and failed to protect against hearing loss and tinnitus. 3M's Combat Arms CAEv2 earplugs CNBCEach earplug had two ends: The green end was designed to block out all sound. 3M disagreed with those claims, telling CNBC: "The data support what 3M has maintained throughout this litigation: the Combat Arms Earplugs version two were safe and effective to use.

---