White Goose Down. Made in Poland. Duvets available in 3 sizes: Twin 68x92 in (14 oz) / Queen 92x92 in (22 oz) / King 110x92 in (30 oz). *Our sleeping pillows and duvets/comforters are not eligible for exchange or refund unless there is a manufacturer defect or error. Technical Information The Caribbean Light duvet is considered our lightest weight comforter, best for warm climates and/or hot sleepers. All Yves Delorme down comforters have double stitch construction with piped edge, preventing down from exiting the sides. Filling : White Goose Down Fabric : 100% luxury long staple combed cotton, batiste weave, 305 thread count. Construction : Box Stitch: Each pocket is filled with the same amount of down, ensuring warmth and thickness throughout the entire duvet. Fill Power : 680