You need the ultimate combination of a location photo/video pack, 12" IT case and sport-travel backpack that provides ample ergonomics, stability, protection and stealth, all in a package that is fully convertible between these three specifications. This is the basic model, for compact D-SLR/video kits.
Water resistant 1000D Nylon shell & 420D Ripstop Nylon lining, rear opening main compartment w/ removable fully padded mesh w/ zip lid, Brushed Nylon lined configurable camera compartment & removable laptop sleeve w/ 6 pocket organizer, 2 x external covered & gusseted zip pockets, spine slot back pad, carry handle, chest & waist straps, D rings accessory loops & retro reflective strips on adjustable harness straps, fits 12" laptop.
Location photo/laptop backpack, fully convertible. Rearward opening convertible 12" photo/laptop backpack is low profile - for great stability, good security - access to main compartment only if bag is off -shoulders, and good durability - the main zip works with, not against the bag. On location the bag is placed 'front' down - the harness and back pad stay cleaner so you do too! The main photo compartment is fully configurable, has plastic sheet cored foam inserts that prevent hot spots on equipment and is full removable, allowing the back pack to be used solely for cargo. The removable insert for 12" laptops can be used to insulate your lap whilst working, from a hot laptop. For extra support deploy the adjustable chest strap.
low profile, convertible, build quality
side pockets not usable, price
what is worth every penny is Crumpler's build quality:
the bag is solid - sews are tight (and clever doubled at usage hotspots), firm and waterproof materials
and usable: the inside zip, inside convertibility and other details, that prove that there took someone time to think :)