I purchased an iphone 4 for my Mom to have. She has had a Otterbox Defender on it since she has had it, and it was replaced under warranty once already due to the rubber stretching and getting loose. It's doing it again, and I want to get her a LIGHTER, thinner, case but also one that still protects it good from drops. Any recommendations out there that you guys might have that I can get for her? She is starting to hate the case too. Thanks!