cover：100% cotton 233TC downproof
Inner core: 10% white duck down, 90% white duck feathers.
Outer layer : 90% White duck down,10% white duck feathers
This triple chamber pillow was designed to provide optimum neck support without compromising comfort. It contains the luxurious soft lofting properties of duck down with the comfort support of duck feathers encased in a soft cotton twill fabric. It is available in standard, king and European sizes. Dual chamber pillow with inner core for extra support.