Brenthaven Fusion Messenger Bag for MacBook Pro, Powerbooks and iBooks up to 15.4" Fits Apple laptops and other similar laptops up to 15.4 inch Patent-pending CORE Protection System protects all 4 corners and 2 side panels and is a removable sleeve Front organizer panel provides multiple pockets for iPod, cell phone, AC adaptor, cords, pens and other accessories Water bottle holder is tucked in a zippered side pocket Expandable option adds 20% more capacity