The 15" medium sleeve fits the 14" t42 with either battery + some room to spare. The Large sleeve fits the 15" t42 iwith either battery + even more room to spare. Don't bother getting the medium sleeve for the 15" thinkpad - it won't fit. Don't bother getting the large sleeve for the 14" thinkpad - there'll be too much extra space.
If you're really interested in (much) more detail, feel free to keep reading.
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Finally getting around to posting on fitment of the Zeroshock 15" medium (A4) and large (A4L) laptop sleeves on 14" and 15" T42 notebooks. Note that the site (Shinza.com) sells a 12" sleeve, 15" medium, and 15" large. They don't have a labeled 14" sleeve.
I was going to post some pictures up, but they really don't seem to help in terms of determining fit, so I thought simple text descriptions would do best.
Zeroshock 15" Medium Sleeve:
This is what 14" TP owners should get. A t42 6-cell set with front corner flush to the front corner of the sleeve leaves almost an inch of free space on the back and opposite side, but it doesn't feel too loose. There is enough space to fit an 850pg hardcover book in with the laptop and still smoothly zipper up the sleeve. In fact, I was able to stick a 1500pg hardcover textbook in with the notebook and the "high-resistance polyurethane foam" stretches enough to allow it to close, not that you'd want to be carrying big books in the sleeve along with your computer!
14" + 9-cell fits just as well, with room to spare. Someone earlier said it fit like a glove, I'd say more like a glove a size too large, but again very comfortable and I could call the fit ideal.
Don't bother getting the medium if you have a 15" T42. With no battery or the 6-cell, the foam can stretch enough to close, but in glove-speak, it's definitely an OJ fit. You'll be pulling the sleeve to stretch it and fighting the zipper every time you put the laptop away. With the 9-cell on the 15", I couldn't get the zipper to close fully, and didn't feel like fighting it and scuffing the rubberized coating on the notebook cover.
Zeroshock 15" Large:
First, a note on my individual sleeves: The 12 and Medium sleeves are very soft - They do the whole memory-foam thing quite well, and I can see the "raw egg drop" being done with no ill effects. The 15" large seems to have a firmer foam - it feels a lot like pushing into clay - firmer resistance. I don't know if it's intentional or just random variations in manufacturing, but for the smaller shocks the zeroshock seems to be adept at protecting against, I imagine the 12/Medium does a slightly better job. Also, all the sleeves becomes much more soft/pliant as the temperature increases. If I leave the sleeve next to the t42's side air vent, it gets to an almost gel-wristrest type consistency.
The large sleeve is too big for the 14" notebook. In fact, i can fit a 14" AND 15" t42 into the large sleeve easily (more easily than cramming the 15" notebook into the Medium sleeve). I bet with some shoehorning, it could close around 2 15" T42s
Technically, this means the large sleeve is also "too big" for the 15" thinkpad, 9-cell or otherwise. It is pretty spacious, when I close the sleeve I can get more than an inch of empty space against the side and back. The 1500pg hardcover textbook also fits in just fine with the computer. I get the feeling this thing was made to be able to fit those enormous HP Pavillion or Toshiba Satellite 15" notebooks. I can't believe IBM had the audacity to make a thin and light 15"!
Still, the large sleeve works just fine for the 15" notebook, and it's the only size that will fit. IMO too big is better than too small anyways. I can still fit the combo into my backpack's laptop sleeve, and the large size makes it easy to zip up when I'm ready to pack up. Still, a size between the medium and large (closer to the medium) would be just perfect for the 15" t42.







