* 420HD Oxford nylon with PU coating. * Special anti-sloshing compartment for hydration bladders with Velcro strap to secure hydration bladder & tube channel opening * Features top-fill closure & anti-sloshing stabilizing handle for easy filling & cleaning Article: Ogio Dakar 3L Hydration Backpack, black, Size S 11-20l Article: Ogio Dakar 3L Hydration Backpack, black, Size S 11-20l, black, Size S 11-20l