We may have out first at Ant-Man's similarly powered nemesis in his supervillain get-up. Locate a grain of salt, of course, but this appears to be concept art of Yellowjacket, the outfit/armor worn by Darren Cross, the Ant-Man antagonist played by Corey Stoll.
In Ant-Man, Hank Pym invents a material that allows him to shrink to the size of an ant — but how does Ant-Man's nemesis, Yellowjacket, get his own superpowers? Turns out it's way different than the comics. Actor Corey Stoll told us the costume's backstory, along with some details about Yellowjacket's arsenal.