hmm, I just checked and the crinkle georgette i got from them is 8mm. so perhaps i should "bite the bullet" so to speak and get the 8 or higher... but at the same time I live in SC (it NEVER is cold here) and go with the 5 so I can wear the dresses all year. (I was planing to line things with it too.) but it's very pretty... *slaps self* now I'm thinking about what i can do with all the diff weights! bad me!