This scarf is called Wings of Desire (Ravelry link) and is a free pattern that was designed for the colour repeats in Noro. I used two skeins of Noro Silk Garden Lite, colourway 2011. (You could totally use the Noro Silk Garden Sock Yarn that Shelley has listed on the website. There are lots of other Noro yarns in the store as well, along with the Silk Garden Lite!) The scarf is a quick knit on big needles. You knit it in two sections and then graft at the neck, so that all the wings are going in an upward direction on either side.
I see more Noro in my future!