Knit in lovely sparkly Pertinio, this top is gorgeous. The model's a bit pasty, I know, but on Ginni, it's fabulous. The fabric is light and cool. Pertinio is a slim little ribbon with a tiny twinkle of metallic. The pattern's in the Moments book.
Another sweater option for Pertinio is this sweet little Stardust, a free pattern from Knitty.
You can see how the Pertinio knits up in this design here. It's just the thing you need.