Axis Convertible Messenger Bag Sleeve for 13 Devices Black. The perfect travel organizer for anyone with a busy lifestyle; the Axis convertible messenger bag sleeve promises function and style above all else. Streamlined to be thin and crafted to be water-resistant thanks to our coated twill exterior, the bag folds open utilizing every square inch of the bag. Highlighted by a 13â inch laptop/tablet compartment, the Axis will keep you organized no matter ho