Unfortunately, the D7100 does not fit really pure comfort, even if the camera given maximum dimensions of the bag below loosely.
The material is stronger than I had hoped for that. I know neoprene as softer, more flexible material.
This bag is, however, more determined and stubborn.
It is also interesting that there seems to be the case in three different sizes, which has delivered size S. There are, according to packaging even M and L.
Unfortunately I do not find the larger models here at Amazon.