Worst cable design I've come across but I do like the sound coming from them so I will stick with it. Works fine with cable behind my back until I turn my head and the piece comes out of my ear.
Too much catch between the rubbery cable and cotton clothes. A smooth flat plastic cable would be bad but better. Or I need to break out the plastic shirt.
Yup - same problem. Moving the head around a lot (which I do at the gym) invariably pulls the driver out of the ear (and this is wearing them properly and over the ears, and using the clip). The cable is just too inflexible, and because it is flat, it can only really flex one way. Anyway, I'm not breaking out the plastic gym attire, so I think the solution for me is to just not use the mh1c at the gym lol.