M-Edge Touring Kindle DX Sleeve (Fits 9.7" Display, Latest Generation Kindle DX), Red
I travel weekly and this makes a perfect cover for my DX.  I carry it in my backpack everywhere.  It fits the Kindle superbly and is small enough not to take up too much room in my crowded bag. I would recommend it to anyone who have to do a lot of moving around.  The only drawback I have is it would be nice to have a place to put an address tag or business card on the cover in case you get separated from it.