Hunting Gear via eBay offers the Barska Tactical Loaded Gear GX-100 Utility Laptop Backpack in Black for $28.99 with free shipping. That's the lowest total price we could find by $16. It features four main storage compartments, two mesh side pockets, front utility pocket with organizer, accessory hook, and padded sleeve for laptops up to 15.6". Deal ends April 19.

Note that Amazon charges the same, however stock is limited.