Large capacity with many pockets Convenient USB port design Comfy and sturdy Anti-theft and functional High quality nylon material A perfect gift Ergonomic Design S curve padded shoulder straps offers light-weight carrying and of force reinforcement Water Resistant Backpack Made of waterproof and high quality nylon fabric A comfortable soft and sturdy handle External USB Charging Port With built in USB charger outside and built in charging cable inside great convenience for charging your electronic products via connecting your own power bank