This duvet is filled with white down, this down is taken from birds that live in Canada, in the open air where temperature may go from -50°C during winter to 35°C during summer. Because of this range of temperature, birds as well as their down had to adapt themselves to the climate, thus develop a high quality down. With its 600 cu.in/oz loft power, this down gives the duvet a dazzling architecture and its fabric keeps down fibres which are light and thin. The 233 thread count cloth, 100% cotton made will bring softness and comfort throughout the night, all year long. This duvet is made of with several compartments which allows a perfect filling of the duvet, and keeps the down altogether and with homogeneity. This duvet is thermoregulated, which means that it will adapt to your body temperature whatever the outer temperature is. This duvet is filled with a sumptuous white down, carefully selected and blown in our manufacture for your best comfort! We recommend the use of a duvet cover which will ensure the protection of your down duvet.