Our popular, two-compartment backpack has adjustable harness with CollarCut™ shoulder straps, sternum strap, waistbelt, and load-adjustment straps. Stow camera gear in the bottom compartment, outerwear and lunch in the top. Bungee cord web provides stability and additional storage, attachment loops take optional SlipLock™ accessories. Center divider folds away to create a single compartment — just remove the padded camera insert to use as a traditional backpack. Includes All Weather Cover™, pull-out tripod holder and side mesh pockets.

Capacity :  
large pro SLR with lens attached, 2-4 additional lenses up to 80–200mm f/2.8 and accessories

Size (Exterior)  :  13.4W X 10.2D X 20.5H in./ 34 X 26 X 52 cm

Top Compartment Inner Dimensions  :  11W X 5.5D X 11H in./28 X 14 X 28 cm

Bottom Compartment Inner Dimensions  :  11W X 5.9D X 10H in./28 X 15 X 25.5 cm
Outer fabric  :  water-resistant 600D TXP™ ripstop and 2000D ballistic nylon
Weight  :  3.33lbs/1.51kg

Sources : www.lowepro.com