Kim Hargreaves' has two gorgeous summer books, Misty, and Nectar, and another one, "Whisper"on the way.  Here are a few of my favorites.  

Sage is worked with a dk cotton blend (like Bambool) for lovely stitch definition and great drape.

Down is worked in light-as-air Kidsilk Haze

Embrace is worked in dk pima cotton with minimal shaping and great drape at the front.