Size:44*33*16CM 
 Volume:20L
 Weight:0.56kg
 Fabric:Ballistic nylon+420D/pu nylon+600D/PU
 Description:
 Integrated hydration system in main compartment to hold 2L water bladder
 Two side mesh pockets to keep bottles, umbrella,and snacks
  Mesh padded backside with high effective airflow
 Front quick-grab zipper pocket carries your little essentials, such as keys,cash