When jogging the bracelet fits superbly by the arm, whether upper or lower arm. It does not slip and the iPhone is easy to operate yet. Nevertheless, I was sweating while jogging, the weld has not gone through the material. The iPhone was dry. When it rains, I have not tested the tape, but in the heat it has held what it promises. And there is indeed a gap for the headphones. Located, like the iPhone 5S nunmal bottom of the device or on the bracelet. So everything was great.