My youngest daughter wants a 6s+ for her birthday (not happening, maybe Christmas), but she drops the phones, her iPhone 4 went swimming in the toilet which killed it, her 5s gets dropped all the time (Thank G_d for the UAG case and tempered glass screen protector!!!) Since she is in high school now, about the be in 10th grade, she never puts it in her backpack or pockets, she carries the phone in her hand. What is a good, solid, protective case that will last for a while? The UAG cases have been pretty good, Life Proof fall apart after about 6 months to a year with her, and she managed to kill an Otterbox. Suggestions?