One my favorite sweaters it goes with me everywhere. Planes, trains, work, and more. I have worn it climbing and other outdoor activities and it has worked so well. It is perfect for layering during the winter. If it is a windy situation I were this under a puffy or a wind breaker. The only thing is it is a little bulky for packing, if you are willing to risk the size and weight, it is a perfect sweater.