Best Price I've found so far on this. Good Quality Messenger Bag.
This comfortable tactical messenger bag is designed to fit a 17" laptop in a padded, internal sleeve and offers over 20 organizing pockets. Two Backup Belt System pockets (one internal) and one external with zippered and Velcro closure allows you to either completely conceal your weapon, or to have it prepped and not seen. Web platform and multiple attachment points, as well as internal and external BBS make customizing the 5.11 messenger bag a snap, while the top carry handle and padded shoulder strap ensure it's always by your side.