I've been using the 15L Metrosafe for years to carry my laptop and a few file folders to and from the office. Since retired but still doing a little part-time work. No office so I'm carrying around more gear and needed to upgrade to a slightly larger pack.I have always been impressed with PacSafe and have two of their camera bags. Construction is solid and the security features simple but effective. It was a no brainer to look at PacSafe for a larger pack. The MetroSafe X has plenty of storage for my laptop, a few more folders, power/charging cables, mouse, portable drives, headphones, a few snacks and a lot more. Basically I carry almost everything I had stored in my old office desk, except maybe the external computer monitor.As a travel bag, I appreciate the security measures ranging from the wire mesh lining, secure zippers, cable straps and low-profile back pocket. Even as a work backpack, I can secure the backpack to discourage curious souls from pilfering pens, notepads or other gear stowed away. It's going to take some effort to get into this pack, effort that will take some time and attract attention.Highly recommend the PacSafe line.