The second development from the Stone Island Shadow and Bagjack collaboration is a backpack. New for 2010, this medium-sized backpack has many of the same details as its bigger sister, the Messenger bag, the third edition of the Stone Island Shadow shape-shifter bag: messenger bag, briefcase and backpack, all in one. With the lid zipped and the straps across your chest, you get a full capacity backpack; with the lid zipped open and buttoned to the inside, you have a messenger bag; with the lid flipped towards the back (covering the strap system), you have a briefcase. The size can easily be adjusted by the side straps. Both are now available at The-Glade.