IMPORTANT: This product is custom-made to order and not cancellable. When only the very best will do, look no further than our Frostline duvet insert. Our finest duvet insert is filled with 850+ loft Canadian Hutterite White Goose Down that originates from a single Hutterite farm in Saskatchewan. This free-range down is so mature, that it is warmer in the winter, cooler in the summer, and yet always light and airy. This down is cleaned to the highest standard and is Zurguard™ certified to be hypoallergenic. Our special long staple 400 thread count cotton is soft, light, lustrous and perfectly down proof. Shell: the 100% cotton sateen is down proof and dust mite proof, is piped with satin cording and our sealed baffle box design prevents down from drifting from one section to another. All our duvet inserts have corner loops that attach to the corner ties inside our duvet covers. Proud member of Downmark®, the Down Association of Canada, your assurance of quality and integrity in the manufacturing process. This winter weight duvet insert is our warmest weight for cold sleepers or unheated bedrooms. Always use a duvet cover to ensure your duvet insert lasts for many years of sleeping comfort. Dry clean only