Originally Posted by DKDetective
I think these two shots show pretty clearly that the suit mimics Henry's physique pretty closely, but that there is a little bit of well-placed padding to prevent the tight suit from compressing Cavill's body and reducing the visibility of his hardwork. Ironically, given how small the size difference is, if as Poni Boy suggests the suit material is really thick that actually undermines his argument about padding. It would suggest that there is less padding that he is asserting.
I wouldn't even really call it padding. What is in there is just sculpted musculature (based on Cavill's actual sculpt, to an extent).
With the exception of some extra padding add to the legs, they entire suit is filled out by Cavill himself. The suit does not add any size to Cavill and if it does, its VERY minimal.