In a couple recent blogs I have seen mention of competition for The manila mac or air mail, whatever its called and there was mention of a company called waterfield but no one has made mention that they both have competition. My product is also being manufactured by a company that mainly makes laptop bags . Check out www.interofficemac.com and you will see the best thing yet for the Macbook Air . We have created a sleeve that is identical in dimentions to an interoffice envelope and has been made to have twice the padding as the competitors and a non scratch lining. We kept the red string and buttons for mere novelty and to preserve the look of the envelope, but c’mon one cannot expect some buttons and string to secure your laptop. Instead, the other end of the sleeve is outlined in an industrial zipper. So put the word out if you are looking for a protective and usable sleeve for your Macbook Air. Check us out at www.InterOfficeMac.comMacbook Air Sleeve