In the comic book world, superheroes modify their costumes on a pretty regular basis, so it's not surprising that Chris Evans' cinematic Captain America has already gone through three costumes. In 'Captain America: The First Avenger,' his suit was tough and WWII era-appropriate. In 'The Avengers,' he upgraded to a more streamlined and stylish look. But what about his new uniform for 'Captain America: The Winter Soldier'? Well, a newly leaked piece of concept art gives us our best look yet at the redesigned outfit.