This 41 oz (1148 grams) duvet, with its 1 inch gusset, is filled with a sumptuous white Hutterite Canadian goose down, taken from birds that live in the open air in Canada. The loft power of this down has no equal, 700 cu in/oz. The comfort of this duvet is maximum. The fabric quality of the duvet has been studied so that it is, at once, soft as silk and resistant enough to avoid leaking. This duvet has thermoregulation properties, which means that it adapts itself you’re your body temperature during the night; this is the end of perspiration under your duvet, whatever the season is. All the duvets available at Luxury Duvet come with a certificate. You will find several tags attached to your duvet, such as: the ultra-fresh treated tag, a Feather Industries tag that assures you the content is only real Hutterite Canadian goose down. An official label of the Down Association of Canada is a proof that your duvet has been manufactured by one of its members. The Ultra-fresh tag guarantees that feathers or down inside your duvet have received a rigorous anti-microbe treatment that prevents growth of bacteria and acari, among others. The feather industries tag reports the batch number of the down that fills your duvet, so that we are able to track the product filling. With the 4 saisons duvet, sleep comfortably in a good duvet all year long.