When out and about jogging, running, hiking, well anything where you need your hands free, you want your phone. My phone is a must have to bring with me everywhere I go. Pay phones are scarce and if I don't have room for a phone I wouldn't have room for coins anyway. Having an armband to carry my phone while I am on the move is absolutely wonderful. You can listen to music, talk on the phone or just leave it be, all while your phone is attached to your arm. How cool is that?