GoPro Backpack Strap Mount

I needed a GoPro mount for my backpack with horizontal slots.
Problem with the traditional design was, that the camera was always tilted to the side. It was difficult to align it straight to the front for time wraps. Also added a thumb screw wrench, as there was some space left.
One slot is on the top to fix it on one of the straps for the drinking tubes, so you can prevent it from sliding down.