Sacca D'Idratazione Da Tre Litri Colorazione OliveHydration pack 3L The backpack consists of two packing parts. All of the packing compartments are closed with the use of a zipper. Two of the smaller compartments are equipped with a two way zipper. In the main biggest compartment there is a pocket for the hydration insert and a hole to put the hose what allows to make the backpack a comfortable and capacious camel bag. The backpack is covered with the MOLLE system PALS webbing. Thanks to this we can