Full Details from Amazon.com : http://www.amazon.com/gp/product/B000023VPY?tag=onigi-20

Incase EO Travel Backpack (Black) fits up to 17 MacBook Pro

Padded back panels and shoulder straps with breathable mesh
Main compartment expands 35 for overnight travel
Triple coated weather-resistant front panel
Padded sleeve fits up to 17 MacBook Pro
MacBook compartment opens flat to easily pass through airport security