This design uses flexible elastomeric cups for comfort. It is based on a 3D scan for accuracy. Read more about this custom fitted 3D printed bra project here: Roman Top with 3D Printed bra cups
Note that Shapeways no longer offers the elasto material (shown is gold) so nylon would be used for future versions.
Contact ThreeFormFashion (at) Gmail.com for information how to create accurate measurements, 3D reconstructions, or for body scanning services.