It has cotton velor on the outside and microfiber on the inside plus a layer of non-woven fabric that forms our "hold up" system that helps to retain liquids for a longer time avoiding leaks or compression spills.
It is an excellent ally to add more absorption to your waterproof absorbent, whether you place it inside the pocket of the waterproof absorbent or outside it in contact with the baby's skin, since its exterior is made of 100% natural fabrics that take care of your baby's skin.