Lowepro Protactic BP 450 AW II SPOT DEAL
Lowepro currently has two backpacks in the Protactic range. The Protactic 450 and 350. The Protactic 450 is best suited if you have a camera or two with a battery grip as the depth of the bag is sufficient. Obviously the overall size of the Protactic 450 is larger than the 350. You can find a link to the Lowepro Protactic BP 350 AW II on this page if you wish to compare.