The Lowepro COmpurover AW is suitable for a notebook computer up to 17", Large Digital or 35mm Pro SLR with lens attached, 2-4 additional lenses up to 80-200mm f/2.8 and accessories.

The Lowepro Compurover All Weather back pack is a three compartment backpack which can carry a digital pro SLR with lens attached, 2-4 additional lenses (up to 80-200 mm), a 17" notebook computer, digital accessories and personal gear. 

But capacity alone is not what makes the CompuRover AW so amazing. It's packed with features that every digital Adventure photographer will appreciate, a drop-down tripod holder, cable management bag, removable waist belt, built-in memory card pouch and the patented All Weather Cover™. It's more than enough to impress any photographer.

Capacity:

Up to 17" notebook computer. Large Digital or 35mm Pro SLR with lens attached, 2-4 additional lenses up to 80-200mm f/2.8 and accessories.