The Luna Lullaby Nursing Pillow Cover "Mermaids" is made of plush soft minky fabric that is hypoallergenic and removable so it can be easily washed. For you and your baby’s safety, the Luna Lullaby Nursing Pillow Cover does not utilize zippers, hooks, buttons or Velcro. Our original fold-over closure design is comfortable and helps keep the inner-cushion secure and in place. Made in the USA. Wash in warm water gentle cycle No bleach detergents, fluff dry or hang dry.