This pattern is by Indygo Junction, called the "Classic Vest".
I have created a photo album to give guidelines on how I made my vest into a Zebra Striped Vest. These are not exact directions and you may have a better way of doing it. I encourage you to use your creativity to make it your own.
Pattern and hand-dyed fabric are available from Cherrywood Fabrics.
www.cherrywoodfabrics.com