Luxury Duck Feather & Down Duvet Quilt The fabric used on these duvets is 230 thread count high quality down-proof 100% combed cotton, which helps keep the filling trapped & gives a silk smooth feel. The duvets are constructed with square box stitching, allowing the filling to remain evenly spread across the duvet at all times. The duvet is further complemented with a fine double stitch edging & piped trim giving it a perfect finish. Machine Washable at 40c. These duvets are filled with 85% white duck feather & 15% white duck down. The highest quality duck down & small length feathers have been used offering greater comfort & luxury. These duvets are perfectly filled so will give you the ideal warmth & comfort, which usually is not available with synthetic duvets. Size: Available in all bed sizes; single (135cm x 200cm), double (200cm x 200cm), king (225cm x 220cm), superking (260cm x 220cm) & emperor (290cm x 235cm). The filling has been washed, sterilised & steam purified to the European Down & Feather Association's highest standards making them anti-dust mite & hypo allergenic. Luxury Duck Feather Down Duvet Quilt 230Tc Cotton Casing