The Whistler BP450 AW backpack offers secure storage for an extensive pro DSLR outfit including a 400mm lens in extreme conditions, with the ability to carry skis, snowboards or a heavy tripod thanks to a rigid internal structure. There are multiple attachment points for other trekking accessories. The main camera compartment can be removed, and a roomy front pocket (with drain holes and waterproof barrier) fully separates outdoor gear from your expensive equipment. Top quality technical fabrics are used throughout to ensure durability and weatherproofing. A separate All Weather Cover is also provided.