yes it´s a sympatex membrane, weight about 119g/qm2
This i´ve received from my husbands friend, he has worked at Sympatex :) I dont´know where to buy this in stores, i could ask him...
I don´t know much about it just the weight and one side is coated (with the sympatex signs), the other side feels like cottony and its grey! This fabric is very enjoyable for sewing!!