He chose an orange and brown striped shirt, blue sweat pants (despite my suggestion that he wear the same pants in brown), gray socks pulled up to his knees, and his button-up sweater. It was a look. :-)
When I told him he looked so awesome, I wanted to get a photo, he happily obliged, knowing he looked so good.
This is his self-proclaimed "spit face":
His excited face:
Then he wanted to show off how tall his socks were:
He just needs some lederhosen.