The Wenger SwissGear SYNERGY Computer Backpack. Fits up to most 15.6in notebooks, SWISSGUARD computer pocket, air-flow back padding, shock absorb shoulder straps, quick pocket, ipod/mp3 player pocket, essentials organizer, case base stabilizing platform.
Comments about Wenger Wenger GA-7305-14F00 15.4" Synergy Computer Backpack:
This is a terrific backpack for a 15" computer. I got rid of my last Swiss Army because it didn't have a waterproof bottom, but the Synergy can be put down on a wet pavement and still remain dry inside because of the waterproof protection on the bottom of the bag.
Lots of pockets, plenty of room for my MacBook Pro 15", along with power supply, cables, et al. After all of my papers and necessary items for work, I can still get a pair of running shoes in this case.
The case is very light weight, so you're not starting out with something that's already heavy and just gets heavier as the day goes on. It has very good padding on the straps and the back of the bag. As with most Wenger bags, it's very easy to adjust once it's on your shoulders.