This courier style backpack has been one of ortliebs most popular products for many years. It is simply unbeatable when it comes to accompanying you to work school and play. Some of the velocitys distinctive features include its durability waterproof performance and rear padding that ensures excellent ventilation. The velocitys carriage system has now been ergonomically optimised for even greater carrying comfort. The waist belt is easy to adjust and even detachable. The velcro roll closure makes for wonderfully easy access and packing. And if the velcro pad should ever wear out after many years of intensive use you can return your velocity to ortlieb to have it renewed so as to give your backpack a second life. This makes the velocity a sustainable lifetime companion. The backpacks interior has also been given a new design. In addition to the large zippered inside pocket both velocity models now have a padded laptop compartment. Fabric ps50x ps50cx height 50cm width 30cm depth 16cm volume 23l weight 750g