Notebook sleeve for X61s(slim 4-cell battery)

So I have new X61s with slim 4 cell battery coming in shortly, and I'm trying to get a notebook sleeve.
I'm somewhat leaned toward getting Zeroshock III.
It seems 12 inch sleeve will easily fit x61s with slim 4 cell, but I also read some people getting 11 inch as well.
So wondering which size would fit perfectly? It would be nice if those who own one of those can possibly post pic as well. Thank you!

 

For a X61(s) with the 4 cell battery, the 12 inch Zero Shock III sleeve will be too big for my liking. You should get the 11 inch sleeve instead which has a snug fit.

I have 3 sleeves for my X61.

1) IBM branded sleeve which is perfect for the 8-cell battery. Included when I bought the X61.

2) 11" Elecom Zero Shock III which is great for the 4-cell enhanced or slim battery

3) 12" Booq Vyper XXS which is good for the X61 and 4-cell enhanced or slim battery, but far from as protective and snug as the Zero Shock sleeve.

 

Guess I'll get 11inch one. Thank for your advice!

 

You're welcome. Btw, don't worry if it (the zipper) feels a little bit too snug the first couple of times. It will give a bit after a few times.

In any event, I'm sure you will be satisfied.