The 3i-1813-5NT features a custom padded Think Tank-designed interior with a rigid removable flap that protects your laptop during transit and provides a sturdy work surface when in use. A heavy-duty hook-and-loop strap secures the laptop in place along with positionable foam blocks that help provide a custom fit for all laptops up to 16". Underneath the laptop are two removable clear accessory pouches that accommodate power supplies, cables, and other items. There is also a handy lid organizer for storage of other small accessories. Inside laptop dimensions are up to 15.125"x9.7"x1.25". Lid organizer dimensions are 15"x10"x1.25". Pouch dimensions are 7.5"x5"x1.5".