A:AnswerThe material is the same. The only difference is that the rubber part of the case goes on first with the commuter series vs the defender where the hard plastic goes on first and the rubber part goes on last.
A:AnswerIf you are looking for completely waterproof then look elsewhere. But... if you are looking for a no thrills case to protect your phone from the occasional fall. This is a good case. It is no fully sealed such as others like life proof cases