What sunglasses are Agent Ward wearing in The Avengers?

Agent Ward, played by Brett Dalton, doesn't wear sunglasses in "The Avengers" movie. He is only introduced in the TV series "Agents of S.H.I.E.L.D." which premiered in 2013.

It's possible you are thinking of another character in "The Avengers" who wears sunglasses. Can you tell me more about the character or the sunglasses you're thinking of?