The Pyrenex Bayonne winter duvet 360g/m² is a warm feather duvet, ideal for sleepers who like to feel a certain weight on them during winter nights. Its natural filling is indeed composed of 70% duck feathers and 30% down, proportions that make it heavier than duvets with 90% down, with a fill weight of 360g/m². Its beautiful finish and cotton percale cover make it a quality product, the fruit of Pyrenex's expertise in manufacturing in France. Enjoy wonderful nights in a cocoon of softness and warmth, for a restorative sleep. Filling in new natural French silver duck down 360g/m² 30% down, 70% feathers TOG (warmth rating): 11 Made in France Percale fabric 91 threads/cm² – 100% white combed cotton Square quilting with box stitching Double-stitched finish with cotton piping Single-dose detergent bottle to dilute All our natural-fill duvets come with a 5-year guarantee.