All baby and children’s undergarments are easy to wash in the washing machine using the wool cycle. They can be washed with a detergent specially designed for wool. Due to the high quality of the natural fabrics, the undergarments should be dried flat or on a clothesline, not in the dryer. However, please keep in mind that pure wool and silk clothes do not need to be washed as often as cotton clothing. Wool and silk clothes tend to become soiled more slowly than do cotton garments.