Pacsafe Venturesafe G3 Anti Theft Travel Backpack Comes in 4 sizes: 15L, 25L, 28L, 32L Three colors ANTI-THEFT - With interlocking zippers, cut resistant fabric, and detachable shoulder strap to secure bag to pole/ chair. RFID blocking pocket to prevent unauthorized credit card scans. The laptop sleeve doubles as a hydration pack system, while external water bottle pockets can also store any easy-reach items. hip strap for weight distribution. Back support padded with honey-comb fabric and height adjustable sternum strap. #pacsafe #travelbag #backpack #backpacking #traveling #summerttavel