Cybersling Tesla Cybertruck Crossbody sling bag mini backpack by Cyberbackpack.com. Front view. Crossbody bags are in. CyberSling is a multi-functional and multi-purpose crossbody backpack shoulder bag with a USB charging port and anti-theft features. With the TSA passcode locking zippers and adjustable straps, CyberSling can serve as your crossbody backpack purse and can be worn as a chest bag, or a convertible backpack crossbody bag. This mini crossbody backpack for men and women has one large easy-to-reach compartment with plenty of room for your gadgets, books, daily use items, etc.