The Josephine 400 Thread Count Printed Duvet Cover Set is crafted from fabric woven to the highest standards. Utilizing single ply combed cotton yarns, it creates a sateen fabric that provides an exceptionally soft sleeping experience. Even before processing and printing, the natural fabric is inherently soft and smooth. After weaving, a series of performance-enhancing procedures are applied using a proprietary finishing and printing process, resulting in a very smooth, soft, and lustrous mirror finish that endures through numerous wash and dry cycles.