Pacsafe vibe 40 anti theft 40l carry on backpack the versatile vibe 40l anti theft carry on backpack is designed for 247 city living whether you need the extra space for your sports gear or youre travelling for work multipurpose and comfortable this backpack meets most airline carry on standards and features back support padded adjustable straps that can be stowed for transit and a spacious main compartment with a padded 15 macbook sleeve so you can move confidently between work and t