Specification:Material: NylonLining: PolyesterSize: 30(Width) x 52(Height) x 21cm(Thickness)\/11.8 x 20.4 x 8.2inchCapacity: 40LGender: UnisexStructure: Main bag、 Front bag、 Interlayer bag、 side bagsColor: Black、 Purple、 Blue、 Green、 RedFeatures:Strong water resistant fabric、 high strength and durable in use.Ergonominc design for climbing、 soft and comfortable carrying.Larger capacity for outdoor use、 multi-functional storage.Package Included:1 x Climbing Backpack