Size:47*31*20.5CM 
 Volume:30L
 Weight:0.855kg
 Fabric:Polyester 420D 2mm ripstop+420D/pu nylon+600D/PU+1680D/pu
 Description:
 Intergrated hydration system in main compartment to hold 3L water bladder
 Two side mesh pockets to keep bottles, umbrella,and snacks
 Front expandable stretch-mesh pocket
 Mesh padded backside with high effective airflow
 Two waist belt pockets