Cotton blanket, perfect for babies. - Brand: coco moon https://www.cocomoonhawaii.jp/?pid=119346819&gad_source=1&gbraid=0AAAAABp88mhZFuxrhnSy8MyRr1fha09tc&gclid=Cj0KCQjwtpLABhC7ARIsALBOCVpE3Z5w5e2p32v8rmlQwkFzBsc8uiCYdC0WewroYrJUE3XbFCWj_scaApSXEALw_wcB Thank you for viewing. It has been washed in the washing machine several times. There is a slight area of concern when viewed from the back, but there are no noticeable stains. Please understand that this is a used item with a sense of wear. I've tried various swaddles, but this one is the most comfortable.