Yep! I just finished my 5th Sorbetto. I'm beginning to think I will be able to make these in my sleep soon!
Anyhoo... It's made from a flat sheet I found in a charity shop (I think its from the 60's ) its 50% Cotton and 50% Terylene (i googled it, its a crease resistant polyester).
I think I'm going to be quite sad when I have to stop making theses in favour of more appropriate winter tops, unless I can find a way to make this more appropriate for winter, Hmm... wool jersey with sleeves??