cashmere sweater and other cashmere product are very delicate and need your special care in your daily life. There are some points that need your attention when you wear it.
First, do not wear the same cashmere for long time, and you can change another one after no more than two or three days. So several sweaters are needed to exchange. Because cashmere is fiber that has life and can breathe, it need time to breath and rest.
The inner side of the outer coat need to be smooth and should not be rough, because it may pill easily if it contact with rough surface regularly.
If you cashmere sweater pills do not grab the pill balls with hand violently which may cause the threads loose. If there are only small balls you can brush them with soft brush. And you can also remove the pills with special pill remover.