Size:63*28*18CM 
 Volume:18L
 Fabric:Ballistic ripstop/PU ,Dobby ripstop/pu 
 Description:
 Hydration system to keep 3L water bladder
 Front fastening system for camping tools
 Sliding chest buckle with emergency whistle
 Light weight waterproof material to make it foldable and easy to be packed into big rucksack