Best Buy: Thule Crossover 25L Backpack for 15" Apple® MacBook® Pro Black TCBP-317 BLACK
Thule Crossover 25L Backpack Review - YouTube
Thule Stir 25L Backpack | evo
Speaking of bags, thought I'd share my absolute favourite (along with a little how I use it). It's the Thule Subterra 25L Backpack, and I've missed using it since my uni converted
Thule Crossover Backpack - 25L Volume, Holds up to 15 Laptops, Dobby Nylon, Water-Resistant, Padded Back, SafeZone, Zippered, EVA Shoulder Straps, Black - 3201989 at TigerDirect.com