Check the listing for details. Pottery Barn Classic 550 FP White Down Midweight Duvet King Insert. Color: White, Condition: Pre-owned. Listed at 375.00 USD. Add a touch of luxury to your bedroom with this high-quality Pottery Barn Classic duvet insert. Expertly crafted with 550 fill power white down, this midweight duvet insert provides superior warmth and comfort, making it the perfect addition to your bedding collection. Designed to fit a king size bed, this duvet insert comes in a classic white color that complements any decor style. With easy care instructions, simply machine wash and tumble dry for a quick and easy clean. This duvet insert is a must-have for anyone looking to elevate their bedroom decor and sleep experience. The first few photos are of this medium weight insert online and its online description. The last few are of the actual insert because something so large presents too great a challenge to capture excellent photos. This insert is spotless and in like new condition. There are a few places where the feathers could be redistributed to their box right next to it. There are loops to attach it to the duvet and it’s securely topstitched around the outer edge so that no feathers escape. I have never had one come through this dense thread count cotton. Used in a guest room in a smoke free home. It retails for $400 before taxes and shipping.