Once all these classified characteristics, it only remained for me to find the tools; o)
This was achieved thanks to this cover.
It is light, flexible and especially hard enough enough to protect my camera shots possible (especially when it's in my backpack).
I can put the shoulder and take it easy in the hand thanks to the small reinforced handle.
And it also protects my sun and sand unit (well when I'm in a place where there is sand on well; o) and water (for that's easier to find).
A good case that met all these conditions.
And it does not take place for storage. Besides my device is always in, not even when I travel.