Eastpack makes backpacks and bags; Quinze and Milan design furniture, usually out of polyurethane foam. Together they have produces "Bound to Resist", a cross between a sofa and a backpack where you will not only lose your change, but all of your belongings into giant pockets on the front and sides.
Now if it only came apart and had backpack straps on each of the pieces, it would be easier to move than this. I'm not crazy about polyurethane in furniture, but I do think that the idea is interesting, there is a lot of storage here.
Available in France from Singulier.