Very airy and light cotton. The only problem for me is that the neck is a bit large (it's a Small already), so I will have to fix that, but it's a great sundress and I love the texture, feel and the lovely blues.
Prettier than the picture even! Had only a plush robe to wear and was looking for something cooler yet pretty. It will pack nicely in my suitcase and I love the pockets too.
I mistakenly reviewed the duster as the dress, but both are wonderful. Easy and comfortable to wear. I've gotten many compliments on it from complete strangers. As I said in my other review, my friend saw me in the dress and wanted one for herself; she bought one the same day that she saw it.