CapacityChiuso: 21 LT - Aperto: 28 LTDimensionsClose: 28 X 41 X 16 Cm - Open: 28 X 41 X 22 CmFunctionalsExpandable backpack with lateral zipper. Buckle with quick-release and fastening system. With removable karabiner. Warranty4 YEARSBackErgosystem Thermoformed with integrated bottom.ShoulderPadding with outside fabric and breathable mesh.PocketsPocket on flap. Double front pockets. FabricPolyester fabric.