The innovative hybrid bag, the Ortlieb Vario PS, can be converted intuitively from backpack to pannier in just a matter of seconds, offering you maximum flexibility. Featuring the Quick-Lock attachment systems on one side and a padded carrying system with chest strap and ergonomic shoulder straps on the other, The Vario PS transforms from backpack to pannier faster than ever. Mesh and zippered outer pockets Roll top closure and waterproof constructions ensures your contents stay dry Flap covers backpack straps, or pannier mounts depending on which mode you are using Padded laptop sleeve Reflective yarn in the shoulder straps, and reflective patches on the sides