Made with our super pure, certified organic wool that has been tested free of chemicals, our Woolie Ball Pillow wool is cleaned and processed organically just like our other wools to prevent a strong smell sometimes present in natural and organic wools.  Our unique woolie balls prevent compression and the pillows can be occasionally machine washed on delicate. Woolie Ball Pillows have a bouncier feel than our regular wool pillows and won't compress over time. Covered in organic cotton damask.