Concentric Vest

I'm participating in a knitalong here in Chicago with some other members of my Guild, and the project is the Concentric Vest from the fall 2007 Interweave Knits. I lost some of the yarn that I needed to complete the vest. It's somewhere in my studio, which is such a mess that the yarn is probably hiding underneath something. Other members of my group are finished or are close, and I really wanted this vest, so then the light bulb goes off in my head to start another. Fortunately I had some Sonoma to the rescue!