The manufacturer has discontinued this product, and as a replacement, we recommend the Lowepro Pro Runner 450 AW.
For that major outdoor shoot, the Computrekker is an oversized photo backpack that still is airline overhead compartment compliant.
The interior is fully customizable and includes removable padded dividers, and large enough to carry two SLR’s and several lenses. A padded rear compartment with water-resistant zipper protects your laptop and provides access even while wearing the pack.
Main compartment interior dimensions are 13×5.3×18.9 inches.