Free MacBook Air Get your FREE Macbook Air, now in Pink! What makes the Air so thin? MacBook Air is nearly as thin as your index finger. Practically every detail that could be streamlined has been. Yet it still has a 13.3-inch widescreen LED display, full-size keyboard, and large multi-touch trackpad. It’s incomparably portable without the usual ultraportable screen and keyboard compromises. So many innovations. So little space. The incredible thinness of MacBook Air is the result of numerous size- and weight-shaving innovations. From a slimmer hard drive to strategically hidden I/O ports to a lower-profile battery, everything has been considered and reconsidered with thinness in mind. Built for the wireless world. MacBook Air is designed and engineered to take full advantage of the wireless world. A world in which 802.11n Wi-Fi is now so fast and so available, people are truly living untethered — buying and renting movies online, downloading software, and sharing and storing files on the web.