Keep all your valuables safe and secure when you have the Anti-Theft Password-Protected Backpack. At the top is a built-in security feature not usually seen on backpacks: a password-protected lock. It uses the same lock trusted by briefcase manufacturers. This lock ensures no one can access your stuff even if they steal your bag. The Anti-Theft Backpack comes in three color options as well as two styles. You have the choice of a traditional backpack or a sling bag. In addition, these waterproof bags have another extremely convenient add-on feature. You can choose to upgrade to a USB-charging design. Plugging into the side of the bag, you can effortlessly charge your smartphone or any other device while you’re on the go. And, it works with your existing smartphone cable so you don’t have to worry about carrying another one around.