He who never thought to leave his backpack at the turn of a path cast the first stone.
For my part, I must admit that it has too often crossed my mind during my travels.
Until there was light!
Damn, but it's obvious! Yet who would think to buy a suitcase without wheels while a few years ago, each of us cursed this thing of torture just out of prehistory? And on what grounds the backpack is it excluded from the theory of evolution?
So I took the time to my position and very modestly, to imagine a backpack rolling on all types of terrain that I could finally get back on the trail in good conditions!
And this is the fruit not yet ripe for this work.
As a reminder, as my creation has given rise to a probationary deposit of authorship in 2010 (legally valid in the Berne Union) and as technical solutions are not described in this video, there is no public disclosure, so I can always file a patent later (the subtleties of Intellectual Property ...).