Our Fresh Moon Organic Bamboo Velour/Hemp/Wool Breast Pads contain an extra Hemp Core. These breast pads are made with one layer of organic bamboo velour, one layer of hemp and backed with a layer of wool interlock. Fresh Moon Organic Bamboo Velour/Hemp/Wool breast pads provide the ultimate protection even during nursing letdown. Highly recommended for new nursing moms - the bamboo inhibits bacteria growth while the natural oils help prevent the material from sticking to sore, cracked nipples. The wool backing provides a thick wetness protection barrier for that easy let-down.