Details:MaterialNylonColorGray, Blue,Black,Weight900gLength35cm(13.78)Height47cm(18.5)Width17cm(6.69)ClosureZipperOccasionHiking,Travel,Outdoor,OfficeFeatures1.External USB port with built-in charging cable, offers a convenient charging for your electronic devices;2.This backpack comes with Headphone port for convenient to listen music without opening up the backpack and listening music hands free;3.Weight balance:The bag is designed to relief the weight pushing down on your shoudler when using this chest bag;4.With adjustable Straps;5.YOUR BEST CHOICE while you are going to a business trip, weekend trip, school, hiking, cycling, work, etc.Package include:1*BagMore details: