Arc'teryx blended the utilitarian messenger bag with the refined urban backpack to create the Granville 20L Backpack. Fill it with your laptop, documents, and extra layers and head out the door for a day of work or school no matter the weather. Its Advanced Composite Construction technology shields all your gear from rain and snow as you embark on your commute while the ultra-rugged 400 denier nylon ripstop fabric holds up to the rigors of daily wear and tear. The large main compartment is easily accessed with a one-handed release buckle so you can access your laptop and lunch while the stretch mesh and under-flap pockets organize your smaller items like your keys and wallet for on-the-go convenience.