FlexVentTM Suspension System - padded mesh back panel, breathable lumbar panel and flexible yoke1 x main with internal organisation system / padded tablet sleeve / pendolier / extra zipped pockets1 x external fleece lined pocket1 x laptop compartment2 x external mesh water bottle pocketsElastic bungee system - for external storageSternum strap with whistle bucklePadded top grab handleRemovable waist beltReflective bike light loop / water bottle tabs / shoulder-strap webbingDimensions: 33.7 x 45cmMaterials: 400D Polyeter with Non-PFC DWR Finish / 600D Polyester with Non-PFC DWR Finish / 300D Heathered Polyester with Non-PFC DWR Finish / 210D Cordura Nylon Ripstop with Non-PFC DWR FinishVolume: 28 litresWeight: 1.22kg