Runalyzer® [Black, size M / L] - Small and lightweight sports armband soft zip for iPhone 3G / 3GS / 4 / 4S and iPod touch (Miscellaneous)
Brassard very comfortable perfectly suited for my smart phone. A zipper to lock the phone well. Opening to hear the voice of the sum of race or coach. Really no complaints. Highly recommended. An amateur runner.