A light natural filled duvet for use in the Summer months, or possibly all year in a well-insulated home. Casing: 100% Egyptian long staple cotton twill, striped dobby, 252 thread count, down proof. Filling: new white European down and feather (60% down / 40% feather), class I, DIN EN 12934. Construction: box-stitch construction, with white satin-piping, finished with CALVIN KLEIN home embroidery on the right bottom corner. TOG 3.5Filling 60% Down and 40% featherNatural filling3.5 togProfessional launder recommendedCotton casingGoose Down Shop At House Of Fraser