The Bag "Trinus 3in1" folded three times and transformed from a large travel bags for travel in a laptop bag again folds into crossbody bag. Now you don't need a lot of bags on the road - you only need one bag "Trinus"
Material of the bag is impregnated with polyurethane, which makes the bag waterproof. Fabric does not remember the folds and therefore does not crumple. Very soft to fold and tight enough to hold the shape.