So from the envelope of which I had least expected that I would be successful, I was pleasantly surprised !! The sleeve fits sums exactly to the 15.6 inch Dell, unlike the other cases of the two other producers (in this case there was always complained the air gap of about 4 cm upwards).
Oh by the way, the smell is so strong criticized these neoprene bags, I can not confirm. Well, when you first open the package from ever coming to a meet a very chemikalischer smell. This has, however, the extent volatilize, that he was no longer wahrzunehemen after the first day.
I am really very satisfied, and when I consider that I have ordered the case only because of the preference of my wife due to the nice design, I can recommend this product vollstens for DELL Studio 1558 on.