The vanguard skyborne 51 backpack will hold 1 2 pro dslrs with 1 attached lens up to 70 200mm f28 1 2 extra lenses a flash unit and accessories memory cards cables battery and charger plus a laptop up to 15 inches wide screen size and a tripod air infused cushioning in key areas results in reliable gear protection like never before and an incredibly light and comfortable bag the skyborne 51s ergonomic harness system with easy adjust shoulder straps makes carrying it a comfortable ex