Both are 100% cotton. I am selling these because I bought too many sets while preparing for my wedding. I chose high-quality items without regard for the price. The fabric is sturdy, so they feel good and are recommended as items you can use for a long time. This is a set of two, a duvet cover and a pillowcase, with a heart floral design. - Design: Heart floral pattern - 210 x 150cm (duvet cover) - 45 x 90cm (for a 43 x 63cm pillow) I prefer to sell them as a set. I am also selling other colors. If you would like to purchase multiple items for a wedding, etc., I will offer a ¥1000 discount as a congratulatory gift. Please let me know in the comments.