Crafted with a tightly woven, down-proof 100% cotton shell, this duvet insert effectively prevents feather escape while promoting airflow for a cooler, more restful sleep. It's filled with 100% natural feathers that deliver breathable warmth and a balanced, medium-weight feel without added bulk. The sewn-through construction keeps the fill evenly distributed, helping maintain its shape and loft over time. Designed with eight sturdy loops four on the corners and four along the edges, it stays securely attached to your duvet cover, reducing movement while you sleep. Ideal for use in all seasons and various climates, this insert is also machine washable for easy cleaning and care. A great addition to elevate both comfort and style in your bedding setup.