The ergobaby natural curve nursing pillow cover makes it easy to keep your natural curve nursing pillow fresh grab an extra for when one is in the wash or to alternate between looks available in three stylish sophisticated options a neutral brown a heathered grey and a cool and calm grey and yellow swirl the plush top is soft gentle on babys skin and the poplin underside is made of 100 cotton they easily zip on and off for machine washing features premium plush fabric is soft gent