It has always been an issue figuring out where to put my phone every time I go for a run. I find it disturbing if it's placed in my leg pocket, and I always worry that it might fall out. Just the feeling of something there tends to throw off my movement. So, I decided to create an arm phone holder, since I find my phone a necessity for taking photos or in case of emergencies , especially where we are, in the quiet and hilly countryside. (I always put my phone on aeroplane mode whenever it’s near my body to help reduce exposure to radiation.)