To wear this sweater, you can simply put it on as a standalone piece on a moderately warm day. When it's cooler, layer it under a jacket or a blazer. For a more dressed - up look, pair it with nice pants and shoes. As for care, dry clean it to keep the cashmere in top condition. Avoid exposing it to sharp objects that could snag the fabric. Store it folded in a cool, dry place to prevent stretching.