The lowepro whistler bp 450 aw is a versatile 4 season all weather backpack for wildlife and travel photographers who carry a combination of camera video and functional outdoor gear the large main compartment is made up lots of customisable dividers which can be manipulated to hold a pro dslr with lens attached 4 6 additional lenses flash and accessories the front pocket expands to fit outdoor equipment and the top pocket is perfect for personal items there are also adjustable side straps