"Experience ultimate comfort with our Silk Duvet Insert. Made from luxurious, natural silk, this hypoallergenic duvet insert offers lightweight warmth and breathability for all-season use. Perfect for adding a touch of elegance to your bedding, it ensures a cozy and restful night's sleep." Our Silk Duvet Insert is the perfect accompaniment to your duvet cover. We use 100% pure and natural long strand silk floss, making silk filled duvets naturally hypo-allergenic and anti-dust mite. Silk filled duvets also have naturally occurring anti-fungal properties. They are breathable naturally adjusting to your body's temperature, keeping you cool in warmer climes' and warm when the temperatures drop. Silk has a natural protein plus amino acids that help repel dust mites, mold, and mildew. Our Silk comforters are warm and cozy without feeling heavy, making it the perfect partner for your duvet covers. Inner Filling: 100% Pure And Natural Long Strand Silk Floss 100% Cotton cover.