The Blok Medium is like a functional chameleon. Starting at 30L and expanding to 32L, it can be used as an everyday backpack or for a short trip as hand luggage. If you want to carry the backpack as a travel bag, you can easily stow away the shoulder straps and carry it as a duffle bag. The pull cords allow you to access the backpack from the top to quickly grab your stuff. On an impromptu shopping trip, you can even fit in a six pack of water from the top. 30 x 66 x 22 cm, approx. 1240 gapprox. 40 liter - 3 opening options – as a duffle bag from the top; generous access from the front; additional laptop - access from the side- 3 carry options - as a backpack, carry-on and messengerpadded 17" laptop compartment and tablet compartmentlaptop compartment: 10.6 x 1.4 x 15.7 inch (width x depth x height)- main compartment with two-way YKK zipper- reflective design elements- hand luggage size- cable / shoe compartment- document sleeve- removable & adjustable chest strap- various mesh & zipper pockets- comfortably padded back panel & stowable shoulder straps- padded compartment for glasses- key ring- elastic penholder