This backpack has a large front pocket with organizer, expandable side pockets, laminated mesh pockets, shoulder straps, sternum strap, a removable waistbelt and attachment loops for SlipLock™ add-ons. Removable bottom straps take a small tripod or a windbreaker.
Capacity :
SLR with attached 80–200mm f/2.8 lens (most makes) plus 3 more lenses or an additional body or a flash
Size(Interior) : 10.4W X 4.9D X 12.6H in./26.5 X 12.5 X 32 cm
Size(Exterior) : 11W X 8.5D X 14H in./28 X 21.5 X 35.5 cm
Outer fabric : water-resistant 600D TXP™ and 600D TXP™ ripstop
Weight : 2.31lbs/1.05kg
Sources : www.lowepro.com