As versatile as you are, this polo-collar cardigan, knit in luxurious Baby Cash­­merino wool/micro­fiber/­cashmere, is sporty (with its contrast-color stripes), flirty (with its fruity hue and narrow dolman-style sleeves) and, most of all, adaptable: It can be worn alone, as shown here, or layered over another garment. The sleeves are worked as you knit the body pieces, with the cuffs picked up later.