It's not easy to carry around a 17" notebook - you need a bigger than average bag, extra protection and disguise against theft. STM have created a laptop bag that provides all this and more. The zipper in the laptop section is waterproof and all fabrics are water resistant, providing protection against the elements.
The STM Large Loop Backpack is a great laptop bag that has abundant space for your laptop, books, folders, gym gear, etc, and padded pockets for your music player, PDA, camera and mobile phone.
“Evolution Large Loop Laptop Backpack. Never had a laptop backpack before. This is my first one & it's such an improvement over the traditional shoulder type bag. I carry a mobile office with documents, folders, a4 diary, cables, charger, laptop, camera, ext. Hdd as well as a bottle of water and lunchbox when required. I wish i could get away with a medium size bag but it isn't practical for me. Features i no longer can live without:- easy remove keychain, secure laptop compartment with top position zip which prevents my whole bag from coming wide open, especially with a full load. Even though i can't fit it under the seat when i fly, my shoulder(s) no longer hurt from carrying the load.”