From the Knit Picks Website:
This is a quick-knit vest that wears more like a scarf than a traditional vest by flowing gently past the hips to create drama for any outfit. The woven I-cord detail creates wonderful structural interest on the back, while breaking up the stockinette stitch for the knitter. Knit in a bulky weight yarn this is a fast gift to knit up for someone special, or a close-to-instant satisfaction splurge for the busy knitter. The best part is this vest can be worn through to the warmer spring months!