The filling is 80% down and 20% feather. Recommended for those seeking warmth. It's an old item, but it originally cost over 10,000 yen, so I think the quality is good. The basic care is dry cleaning only, so I left it in storage at home, and the stains have increased. It's something to use with a baby carrier or stroller. I sometimes used it as a nap mat when visiting friends' houses. When outside, you can put your legs in like pants, which was helpful when it was cold. Please have it cleaned before use.