This backpack folds down to carry it at your belt or at the bottom of a bag, then when you need a little extra space, you can open it to have a full-size A4 bag....
This eco bag, multi-purpose shoulder strap, can be used as a work bag, A4 document holder or as a backpack by changing the positions of the shoulder strap sac...
This eco-bag, multi-purpose shoulder strap, can be used as a work bag, A4 briefcase or as a backpack by changing the positions of the shoulder strap
Changeable shoulder...
