This case you are asking about has a rubber feel without being flexible. It is thicker than some of the other cases such as Seido, but in turn I have no doubt this case will protect the phone. The button on top is a little harder to reach, but I got used to it quick.
If you can I would recommend stoping by a Sprint store and ask to see the case on the phone.
I am happy with this one and will stick with it for now.