This is a nice running belt but if you want to use it with an iPhone 6S, it will  not fit into the window. The pocket for the phone is in the front covered with a cheap feeling plastic there is cheap plastic/ vinl in the interior. accessible. there is a second larger pocket however that is where I put my phone so its easy to use. its ok for what I need it for.  I received this #iphonerunningbelt  for free for exchange for my honest review. http://www.amazon.com/dp/B012TWY04S