Pillowcases not included sold separately secure easy to use zip fastening luxurious silky feel 100% cotton sateen with a luxurious 500 thread count woven using the finest yarns, this dorma 500 thread count 100% cotton sateen range has a lustrous sheen, supremely soft handle and elegant drape'. '.strtoupper('d')ouble pleated detailing and a zip fastening for ease of use, further elevates this luxurious duvet cover and allows you to indulge in the epitome of comfort'. '.strtoupper('b')oasting an understated yet sophisticated simple design, this duvet cover is available in a range of colours and coordinating items.dormaestablished in 1921, dorma is a british heritage brand synonymous with quality, luxury and impeccable attention to detail'. '.strtoupper('d')orma our name is your guarantee.