Marmot Ledge Backpack
Here's what other sites are saying:
The Marmot Ledge pack is built for the long haul. The Ledge is equipped equally well for city, campus, and camp, with a padded laptop case that fits most 15 Inch computers, a roomy and efficient organizer pocket, reflective clipping points, and high-quality compression straps. Numerous specialty pockets and a hydration port finish the job.