100% cotton. The classic BoBoo pattern is back in sheets, duvet covers, pillowcases and shams! Please note the Boboo duvet cover is no longer available in the US size (63"X88") It is only available in the EURO Twin size. Euro twin duvet covers are sold in a set with one pillowcase. Individual pillowcases are also sold separately. Made in Portugal. BoBoo Euro Twin Duvet Cover + Euro PC Set Please note that pillow case is a fitted pillow case with an inside flap to encase pillow. Size of pillowcover measures 20"X24". bobooduvetpcset$129.00 size: 59inx83in+20inx24in BoBoo Standard Pillowcase boboopillowcase$25.00 size: 20"x31"