Ortlieb Vario Convertible Pannier/Backpack - 26L BlackOrtlieb Vario Convertible Pannier Backpack 26L Black. 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