I already have a couple of these cases and I have to say they are one of the best I've used. They are simple, inexpensive and perfectly protect the contents of the envelope. I'm pretty rough on this thing with my laptop - it knocks, falls, whatever - and I've never had a problem in the last few years. They hold up very well (I've even worn them in the rain) and you can put a lot of paper and pens in them. I've bought many other sleeves that looked cooler, but I keep coming back to these because they're so damn strong. Some people complain about the smell, but it goes away after a day or two. All in all, this case is amazing.
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