Shoulder Messenger Bag[Black] for Apple MacBook Pro 13" (MD213LL/A)|Extra pockets, Strap, Slim Design, NuVur Versatile case doubles as a messenger bag Additional exterior pockets give you space for USB cables, flash drives, pens/pencils, phone, etc. Made with soft non-scratch material on the inside & durable neoprene and nylon on the outside Use with or without shoulder strap-detachable Approximate internal dimensions: 12.75" X 9.1" X 1.0"