Swaddle, 100% cotton Size: 0-3 months / 3-6kg I am selling this because I purchased size M. I was greatly helped by swaddling from the newborn period ( ; ; ) The zipper opens from both the top and bottom, making it easy to change diapers even when the baby is sleeping at night. The mittens have only been washed and are unused! Baby Sleeper, Peaceful Sleep, Evening Crying, Fussiness, Organic Cotton, Sensitive Skin, Anti-Static, Night Crying Prevention, Newborn