Backpack:Application: HikingBuild: rear paddingVersion / Back length: normalVolume:Large Category: 15 - 30 lBackpack Volume: 20 lMaterial:Backpack: 100% NylonWeight:Backpack: 1020 gDrink System:Retrofittable: yesRain Jacket:Included: yesStrap:Waist Strap: yesChest Strap: yesEquipment:with reinforcement: yesAdditional Information:reflective details