Walmart offers the
Lowepro Slingshot Edge 250 AW Camera Backpack in Black for $63.98. Opt for in-store
pickup to drop it to
$46.25. (Amazon has it for the same.) That's $7 under our May mention and the lowest price we could find by $13. It features adjustable straps, interior pockets with removable dividers, and storage for an SLR body, two lenses, and a flash in the main compartment.