Navitech Black Neoprene Water Resistant Sports Gym, Jogging / Running Armband Case with “Light Reflection Strip” for the Motorola Droid and Droid 2
This armband works for the first week or so, then becomes effectively useless.  There is a cloth liner on the inside that catches the droid as you put it in the case making it extremely difficult.  This gets worse the more times you use it.  The window is not big enough for the full face of the Droid 2 as well, making certain apps hard to use: Cardio Trainer, built in music player, etc.