Generously filled with supportive, fine pure down. Lofty, lightweight and comfortable. The fine Siberian pure goose down, with an incredible 1730cm ³/oz. fill-power - generously filled into the each duvet - makes for a warm and lightweight duvet. Notable for it's good insulation and ultimate comfort, this fine filling is ideal for nights rest. Encased in a soft pure cotton fabric shell with a fine 330 thread count, double stitched and with piped edging for a soft and elegant finish. Internal baffle-box (walls) construction means no cold spots or shifting down.