Slim-Fit Sleeve for MacBook Air by Belkin

As the MacBook Air is so slim Belkin have come up with the idea of a Slim-Fit Sleeve to protect it. The Slim-Fit Sleeve will be available in the US and Canada from march this year and others should see it available from late May.

The Slim-Fit Sleeve will be available for $39.99. There is also a Leather/Neoprene Sleeve available for the MacBook Air for $49.99 which has zippers on the top or side to give flexibility for access.

Source.