The higher ratio of feathers in the Vispring European Duck Feather and Down Luxury Pillowgives a firmer supportfeel, making one pillow ideal for front or back sleepers, or perfect to use as an under-pillowfor added support with a softer, down, top pillow. The addition of the light and naturally airy,European duck down provides an incredibly soft and comfortable surface to lie on.. *Pillow Filling: 90 European Duck Feather, 10 Duck Down *Cover: 100 Natural Cotton, 233 thread count *Piping: White *Sizes: Standard 75 x 50 cm and King Size 90 x 50 cm