I have to admit, watching a MacBook Air slide into a manila envelope was quite entertaining and super sexy. Then when AirMail released the manila MacBook Air sleeve, I was even more impressed that a company was able to quickly turn a fantasy into everyday reality — Geesh, if only my entrepreneurial skills had kicked in faster! 
Well here's the next installment of the manila envelope trend — the Mac Bag. This bag from Studio Leung is still in its concept phase right now, but it is made of waxed cotton (and is therefore water resistant), and comes with a felt lining for added protection. As I said, just a little bit more practical than an actual manila envelope!
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So very cool.