The Gravity Backpack features a soft rack for maximum organization and a padded notebook computer section, making the Gravity case an ideal school and business pack. The padded computer compartment is specifically designed to protect notebooks with up to standard 15 inch screens. There's also plenty of storage space as you will find an extra large zippered storage compartment with two internal pockets including zippered mesh pockets; they're perfect for personal (checkbook, PDA, etc.) or computing accessories. Other features include a front organizational pocket with key clip and pen loops and mobile phone and CD player compartments with line-out porthole for your headphones. And for your carrying comfort, there's contoured ergonomic shoulder straps with 3D air-mesh padding along with the internal soft Rack, which helps alleviate stress and strain on your back.