Interior pocket carries a 3 liter hydration bladder, keeping you hydrated anywhere you go. Large hook and loop panel in the front of bag can carry nameplates and moral patches. Can be used a standalone backpack with adjustable hook and loop shoulder straps. Can be used as a MOLLE attachment to attach to your tactical gear. Side buckle straps along the pack keeps item secure. In the Box 1x Hydration Pack Specifications: Material NylonSize 16 1/2 x 10 1/2Type Backpack/ MOLLE Attachment California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov