I've recently purchased a Case Logic camera backpack and it comes with a built-in a suspension system that seems quite nice at the first glance. Here I have attached its photo.
Although this sounds nice, I noticed that when I leave the camera there, the suspension rubber exerts some pressure on the function key of my Nikon D7200. I'm not sure if the continuous pressure it cause can damage the function key or it will be all right.
To clarify more, the suspension system is an elastic rubber that holds the camera still in the case.