Little is known about Impervia's background. A loner for most of her career, she did on occasion team up with Titan and Paragon. She is believed to have been involved in the final battle against Ragnarök.

The woman in the picture presented here - previously thought to have been an unknown superhero - was recently identified as Impervia by an anonymous but creditable source. The anonymous source has also provided anecdotal evidence (but no actual proof) that Impervia carried out a number of missions for a Covert Ops division of the US Military.

The exact nature of Impervia's superhuman abilities remains unknown.

Costume:
Impervia wore a metalised full-body costume and protective goggles.