Size:56*26*16CM 
 Volume:35L
 Weight:0.945kg
 Fabric:Polyester 420D double-line ripstop+polyester 420D/PU
 Description:
 Light weight and firm waterproof fabric for the whole bag body to lighten your trip
 Two side mesh pockets to keep bottles, umbrella,and snacks
 Compression straps to adjust the backpack from 30L to 18L
 Detachable back PE board back system make it foldable and easy to be packed into                                                                                                                                              big rucksack as a spare bag                                                                                                                                                                                                                                        Integrated hydration system to hold 3L water bladder