Luxury Long-Staple Combed Cotton, Damask Sateen, 300 thread count. Duvet Cover is damask on the front, reversing to solid ice blue on the back with button closure along bottom side. Arabesques, the ultimate universal decorative motif, embellish the fabric in a series of rounded, intertwining patterns. This moonlit cotton sateen damask jacquard is reminiscent of light-reflecting silk. Yves Delorme Luna Duvet Cover Set