These cardigans are 100% wool and should not need much washing.

Please either dry clean or wash either on the wool cycle in your washing machine or by hand,  using a specialist detergent for delicate fabrics. Do not spin or tumble dry.

What wool hates is to be subjected to sudden changes in temperature so if you do want to hand wash your garment, then keep the temperature of the water constant, and never hot. It is best to squeeze out any excess water and always dry away from sunlight. 

Shake out often to deter moths from taking up residence. If you suspect moths are about then put your garment in the freezer for several days and then keep it in a sealed bag with a moth repellent.