We were trying on all these different versions, and we screened tested with trunks and no trunks. And one of the things David said is that Superman wants kids to not be afraid of him. He's an alien.

We don’t often think of our clothing as plastic, but much of it is. Polyester, nylon, acrylic and other synthetic fibers are commonplace in the blended fabrics we wear every day. As a result, textiles ...