Most have probably seen the MacBook Air Manila Envelope sleeves that followed the release of the laptop. This leather version is just a slightly more chic twist to the slightly geeky sleeve.
This textured leather looks like a slightly more grown up take for any Apple fanboys out there. It features a cushioned interior as well as heat vents for the laptop.
The case from Civilian is being sold for $55, which is not bad for any sleeve. Especially when you consider its geeky appeal, $55 is a small price to pay.