USB Charging Sport Sling Anti-Theft Shoulder Bag, Waterproof Anti Theft Sling Bag, Crossbody Bags Chest DaypackAbout this item Code Anti Theft Lock The main bag of the sling shoulder bag uses a three digit code lock to lock the pull card to prevent the chest bag zipper from being opened to steal the contents of the bag, which can also provide a private space for you. USB Charging Port Design There is a USB charging socket design on the side of the chest bag, which makes it more convenient and safe way to charge your mobile phone while walking or riding. The