When HP was preparing the TouchPad GO they also made a folio case which is made of a kind of artificial textile - like material. Not sure how to call it.
I was fortunate enough to get both preproduction one and production one (with HP logo on it).
It is partly sewn up and partly made by a machine which uses a special mould and a heat or electric current to seal one part of material to another.
Here are two photos of original production case for TouchPad GO with HP logo.
I will upload photos of Go in this case and photos of preproduction one too, thou there is no much difference between preproduction one and production one, maybe a little bit different material, color and some smaller adjustments.
For my personal opinion material from which it is made is too soft and it doesn't feel nice when GO is dressed in it. The only plus I see is that it is very thin as the GO is relatively thick compared to today's tablets and if you "dress" it in the folio case it get thicker so here counts the thin material, they were probably trying to achive that.
I would say that original HP TouchPad 9.7" folio case is much much better and practical to use.