Here is the pattern for the faux leather rucksack I made. (add a waist belt?) You can see the scale at the bottom right. If you make sure the red line is 10 cm when you print out the pattern, all the pieces will be th.
The Desmond Roll Top Backpack Pattern (TaylorTailor)
Sewing is an interesting hobby and a useful and rewarding skill. A few hours spent on sewing can produce a useful and creative item to give as a gift or for the home decor. Learning to sew takes much time and patience.
Introducing a new easy backpack sewing pattern / Neues, einfaches Rucksack Schnittmuster