Firstly make sure your item really needs a wash. Unlike manmade materials, wool does not need to be washed frequently. Try gentle spot cleaning and regular airing instead.
If you do need to wash your product, then choose a machine wash cycle at a temperature no higher than 30 degrees and use the delicates/wool wash if you have one. If you are using soap then make sure it is suitable for the wool you are washing and use a small amount.
If you are hand washing, soak the item in tepid water for about half an hour, then rinse well and press out the excess water, without wringing.
Some of our products say they are dry clean only, but all wool is washable. So if you are nervous about washing your item at home, we recommend that you use a dry cleaners.