Just started using runtastic, it's pretty good so far, and found wearing a shower jacket rather sweaty. I had to use it as it's the only item of clothing I have to run in that will carry my phone (Xperia z2).

Does anyone use an arm wallet? Any recommendations? Alternatives?

Tesco do a z carrier for 7.50, but I'm not sure if I like the idea of it on my arm, however slapping around in a pocket was also most annoying.