[M100] fabric under keycaps

[me]

I have a few fabric sheets that i removed while cleaning/refurbing my model 
t's. in the interest of replacement, what exactly is this material? i have a 
feeling it should be available at a fabric shop. seems to be some generic 
sort of fiberglass.

Daniel
sysop | Air & Wave BBS
finger | calcman...@bbs.erb.pw