Just saw this
Q: Even Superman's costume looks more detailed and a has a sleek, modern look compared to older versions. What did you think of it?
Oh yeah, amount of detail on Superman is unbelievable. Superman's costume, is a three-layer costume; there's a body-skin layer and then there's a muscle layer that was molded to Henry's muscles - it's a silver, metallic rubber - and then over that is a mesh skin so whenever he turns into light it looks like he's made of steel.
It was dated two days ago though so I'm sure it's already been posted here before.