I use : http://www.amazon.com/dp/B003ZZKL6U/ref=cm_sw_su_dp Tuneband for iPhone 4 and iPhone 4S, Grantwood Technology's Armband, Silicone Skin, and Front and Back Screen Protector, Black

I'm only in week 4 though and this is the first and only armband I've ever used. It's comfy though and I have no complaints. I see you have an iPhone 5. The link for that one is here: http://www.amazon.com/dp/B00A92V9QS/ref=cm_sw_su_dp I would assume it's the same but as I don't have that one, I can't be certain.