I got my civilian lab sleeve today. It seems like a very nicely made product. The MBA fits in it very nicely, not too tight, not too loose. It would seem to provide a fair amount of padding, without adding too much bulk. It's not the thinnest sleeve I've seen, but I think my MBA will be safer inside it. It has two snaps to keep the flap down, in addition to the envelope string thing. The front has the civilian lab logo in the lower left, and in the upper right there are three rows of small holes. Nice design details without being cheesy. The leather is nice, but not super posh, reminding me of recent VW seat leather. The inside is lined with a soft padding, and there's maybe a quarter or half inch of padding. I'm very excited about it and I think it will do a great job protecting my MBA. I still may get some thing like the mac case flight jacket or vaja messenger slim, but this is great for now.