Lowepro Vertex 300 AW Backpack Holds 1-2 Pro D-SLR's, large 35mm or medium format system, 6-8 lenses (up to a 400mm F/2.8), tripod or monopod, 17" notebook computer, and accessories Lightweight harness system with high-density padding and 8 adjustment points for maximum comfort with minimal bulk Revolutionary adjustable Glide-Lock system attached tripods, outdoor accessories or any Slip-Lock compatible product Padded main compartment with adjustable padded dividers provides excellent protection and a customized fit for your gear. Seam Sealed All Weather Cover offers maximum protection against rain, dust and sand