Buy.com offers the Samsonite Tectonic 15.6" Notebook Backpack in Black/Olive (pictured), model no. 44332-2470, or Black/Blue, model no. 44332-2642, for $37.99 with free shipping. That's the lowest total price we could find for either color by $12. Features include a padded laptop compartment, padded shoulder straps, water bottle pocket, and support for laptops with up to 15.6" screens.