Like our hypoallergenic Harvester pillows, the Harvester natural duvet is made by Ogallala Comfort Co. of unbleached, chemical-free 310 thread count fabric. The duvets are filled with hypoallergenic Hypodown, a combination of four parts white goose down and one part Syriaca clusters, a fiber from the milkweed plant. If you want to curl up under a comforter without worrying about your allergies, this hypoallergenic duvet is a dream come true. Each hypoallergenic duvet is edged with cambric cotton piping and stitched with a simple yet elegant baffled box design. With its high-quality 310 thread count fabric and hypoallergenic filling, the Harvester rests in perfect harmony with you and the environment. Southern weight. Please allow 2-3 weeks for delivery. (For a heavier weight, see our Arctic and Classic weight hypoallergenic duvets.)