Lowepro LP36448-PWW Rover Pro 45L AW (Galaxy Blue/Light Grey) Airflow suspension system offers a trampoline-style back panel with breathable spacer mesh that provides superb ventilation and optimal load transfer when trekking over rocky or varied terrain Multiple storage options provide large-volume capacity throughout the pack with a variety of spaces and modular compartments for storing camera and personal gearfor both day and overnight trips Front hatch-style camera compartment with zippered closure provides customizable space for gear; offers water-resistant protection; may converted to a fully functional, technical backpack when modular cases removed