Cashmere is a delicate natural fiber, therefore it needs special care. It's important to clean your sweater after the first 2-3 wears, so its fibers compact when wet and it becomes more resistant. This also prevents friction “pilling”.
We recommend hand wash with a bit of soap. It can also be machine washed at low temperature (30 ºC) and low revolutions (400 rpm). It should be dried flat so it doesn't lose its shape. Oh! And cashmere -being a soft fabric- doesn't like softener!