Another vote for an Otterbox case. I have one for my Blackberry because I am always breaking things. I've dropped the phone several times and once accidently slung it across a parking lot and the phone still works perfectly. The Otterbox Defender is the one I chose. Oh, the bike part, I put the phone in a zip lock in my center rear pocket and it stays dry no matter how much I sweat or how much it rains.